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601 | intuitivephysics | Stage Concrete Operational | MC | <video-placeholder: c0146.mp4>According to the video, after the slider hits the wooden block, the ball will: | null | c0146.mp4 | A | {'A': 'Continue to move downward', 'B': 'Stop immediately', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
602 | intuitivephysics | Stage Concrete Operational | MC | <video-placeholder: c0148.mp4>According to the video, after the slider hits the wooden block, the ball will: | null | c0148.mp4 | A | {'A': 'Continue to move to the right', 'B': 'Stop immediately', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
603 | intuitivephysics | Stage Concrete Operational | MC | <video-placeholder: c0149.mp4>According to the video, after the ball reaches the bottom of the slope, it will: | null | c0149.mp4 | A | {'A': 'Move up the slope for a while', 'B': 'Stop immediately', 'C': 'Return along the original path', 'D': nan, 'E': nan, 'F': nan} | |
604 | intuitivephysics | Stage Concrete Operational | MC | <video-placeholder: c0150.mp4>As shown in the video, if you want the two balls to meet exactly at the bottom of the platform, you should: | null | c0150.mp4 | B | {'A': 'Lower the release height of the free-falling balls', 'B': 'Raise the release height of the free-falling balls', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
605 | intuitivephysics | Stage Concrete Operational | MC | <image-placeholder: c0010.png>In which direction do the blocks shown in the picture most likely tip over toward? | c0010.png | null | A | {'A': 'Left', 'B': 'Right', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
606 | intuitivephysics | Stage Concrete Operational | TF | <image-placeholder: c0025.png>Based on the picture, please predict: if the flat board and all the circular objects are released at the same time, will any of the circular objects fall into the slot below? | c0025.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
607 | intuitivephysics | Stage Concrete Operational | MC | <image-placeholder: c0023.png>The white area in the image represents water, and the two basketballs are identical. If the spring connecting the basketball on the right suddenly breaks, what do you think will happen? | c0023.png | null | C | {'A': 'None of the balls moves', 'B': 'The ball on the right will move down', 'C': 'The ball on the right will move up', 'D': nan, 'E': nan, 'F': nan} | |
608 | intuitivephysics | Stage Concrete Operational | TF | <video-placeholder: c0005.mp4>Is there pressure from the block to the wall at the end of the video? | null | c0005.mp4 | YES | {'A': 'YES', 'B': 'NO'} | |
609 | intuitivephysics | Stage Concrete Operational | MC | <video-placeholder: c0043.mp4>According to the video, the way the block stops indicates that: | null | c0043.mp4 | A | {'A': 'The friction of the purple section is greater than that of the blue section', 'B': 'The friction of the blue section is greater than that of the purple section', 'C': 'The friction of the purple section is the same as that of the blue section', 'D': nan, 'E': nan, 'F': nan} | |
610 | intuitivephysics | Stage Concrete Operational | MC | <video-placeholder: c0051.mp4>According to the video, how will the ball move relative to the box after the box being suddenly stopped at its ending position? | null | c0051.mp4 | B | {'A': 'Left', 'B': 'Right', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
611 | intuitivephysics | Stage Concrete Operational | TF | <video-placeholder: c0054.mp4>According to the video, does the way the blocks collide indicates that they have the same mass? | null | c0054.mp4 | YES | {'A': 'YES', 'B': 'NO'} | |
612 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0003.png>From A to D represents from front to back. Is it more effort-saving to grip industrial wire cutters towards the back or towards the front? | d0003.png | null | B | {'A': 'front', 'B': 'back', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
613 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0004.png>If bar A moves right, how does bar B move? | d0004.png | null | B | {'A': 'Left', 'B': 'Right', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
614 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0005.png>In the picture, if the weight is replaced with 15lb, what will happen to the spring? | d0005.png | null | A | {'A': 'become longer', 'B': 'become shorter', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
615 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0006.png>If the green wheel rotates counterclockwise, driving the conveyor belt to move, and thereby causing the entire wheel set to move, in which direction does the purple wheel rotate? | d0006.png | null | B | {'A': 'Counterclockwise', 'B': 'Clockwise', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
616 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0010.png>In which situation is the weight pushing down on the orange pole the highest? | d0010.png | null | B | {'A': 'Left', 'B': 'Right', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
617 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0011.png>The blue gear in the bottom left corner rotates counterclockwise. In which direction does the orange gear rotate? | d0011.png | null | A | {'A': 'Clockwise', 'B': 'Counterclockwise', 'C': 'No rotation', 'D': nan, 'E': nan, 'F': nan} | |
618 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0012.png>The gear on the far right rotates clockwise. In which direction does the orange gear rotate? | d0012.png | null | B | {'A': 'Clockwise', 'B': 'Counterclockwise', 'C': 'No rotation', 'D': nan, 'E': nan, 'F': nan} | |
619 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0014.png>Which pulley system needs the least amount of effort to lift the black weight? | d0014.png | null | A | {'A': 'Left Pulley system A', 'B': 'Right Pulley system B', 'C': 'Equal in both systems', 'D': nan, 'E': nan, 'F': nan} | |
620 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0020.png>These stools are the same height. Which is more likely to tip over when an active child sits on it? | d0020.png | null | A | {'A': 'Left one', 'B': 'Right one', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
621 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0021.png>Which wrench will make it easier to tighten the bolt? | d0021.png | null | B | {'A': 'the Left one', 'B': 'the Right one', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
622 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0022.png>Which wheel is turning faster? | d0022.png | null | B | {'A': 'the big one', 'B': 'the small one', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
623 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0023.png>A ball is performing simple pendulum motion, where left, middle, and right respectively represent the ball being at the highest point, middle position, and lowest point. At which position will the pendulum normally travel the fastest? | d0023.png | null | C | {'A': 'left', 'B': 'middle', 'C': 'right', 'D': nan, 'E': nan, 'F': nan} | |
624 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0024.png>A ball is moving in a circular motion on a horizontal plane. lf the string suddenly tears, in which direction will the ball fly? | d0024.png | null | A | {'A': 'In the direction of the tangent', 'B': 'Towards the center of the circle', 'C': 'Away from the center of the circle', 'D': nan, 'E': nan, 'F': nan} | |
625 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0025.png>The diagram depicts two stationary cogwheels that rotate solely around their respective axes. A rack is positioned between them and is moved in the direction indicated by the arrow. What are the rotational directions and angular velocities of the cogwheels? | d0025.png | null | D | {'A': 'Same direction, same velocities', 'B': 'Same direction, different velocities', 'C': 'Different directions, same velocities', 'D': 'Different directions, different velocities', 'E': nan, 'F': nan} | |
626 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0026.png>You put the same amount of weight at the end of these two pendulums. lf you let go of the two pendulums at the same time, which will swing back and forth more times in a minute? | d0026.png | null | A | {'A': 'the Left one', 'B': 'the Right one', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
627 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0027.png>The left and right balls are made of the same material, both are completely submerged in same water-filled tanks. Which tank (Left or Right) has a higher water level? | d0027.png | null | A | {'A': 'the Right one', 'B': 'the Left one', 'C': 'Same', 'D': nan, 'E': nan, 'F': nan} | |
628 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0029.png>Ignore air resistance, if a boat and bowling ball fall off a 200ft. cliff at the same time, which would hit the ground first? | d0029.png | null | C | {'A': 'Boat', 'B': 'Ball', 'C': 'Both', 'D': nan, 'E': nan, 'F': nan} | |
629 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0030.png>Which handle requires less force to lift? | d0030.png | null | B | {'A': 'Right Handle', 'B': 'Left Handle', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
630 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0033.png>The diagram shows a pendulum hanging from the ceiling of an accelerating wagon. Which way is the wagon accelerating? | d0033.png | null | A | {'A': 'Left', 'B': 'Right', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
631 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0034.png>The person horizontally push the two balls at the same time. The dashlines indicate the trajectories of the balls. Which ball will reach the floor first? | d0034.png | null | C | {'A': 'Red one', 'B': 'Blue one', 'C': 'Same', 'D': nan, 'E': nan, 'F': nan} | |
632 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0035.png>As shown in the picture, there are three U-shaped tubes, each divided by an elastic partition in the center. In the tube on the left, the elastic partition is bulging to the right, and the liquid level on the left side is higher than on the right side; the middle tube's elastic partition is not bulging, and the liquid level on the left side is higher than on the right side; in the tube on the right, the elastic partition is bulging to the left, and the liquid levels on both the left and right sides are the same. Which of the three following diagrams is correct? | d0035.png | null | A | {'A': 'Left tube', 'B': 'Middle tube', 'C': 'Right tube', 'D': nan, 'E': nan, 'F': nan} | |
633 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0036.png>Which measure is marked properly? | d0036.png | null | C | {'A': 'Left', 'B': 'Middle', 'C': 'Right', 'D': nan, 'E': nan, 'F': nan} | |
634 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0037.png>In which picture will the scalesread lower (less weight)? | d0037.png | null | A | {'A': 'the upper', 'B': 'the below one', 'C': 'same', 'D': nan, 'E': nan, 'F': nan} | |
635 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0038.png>Which system will let the most water run out? | d0038.png | null | B | {'A': 'the left one', 'B': 'the middle one', 'C': 'the right one', 'D': nan, 'E': nan, 'F': nan} | |
636 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0039.png>Off which side of the road is the car least likely to skid? | d0039.png | null | B | {'A': 'left side', 'B': 'right side', 'C': 'same', 'D': nan, 'E': nan, 'F': nan} | |
637 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0041.png>If the left ball and the right ball above are the same size and weight, which will roll faster when arriving at the end of the slope? | d0041.png | null | A | {'A': 'left ball', 'B': 'right Ball', 'C': 'They will roll at the same speed', 'D': nan, 'E': nan, 'F': nan} | |
638 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0042.png>Assuming all of the blocks are the same size, what is the minimum number of blocks in this figure? | d0042.png | null | B | {'A': '12', 'B': '13', 'C': '14', 'D': '15', 'E': nan, 'F': nan} | |
639 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0045.png>Assuming the hammers are swung with equal force, which wedge will more easily split the board? | d0045.png | null | A | {'A': 'Left Wedge', 'B': 'Right Wedge', 'C': 'The wedges will split the board with equal ease', 'D': nan, 'E': nan, 'F': nan} | |
640 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0046.png>Which of the two levers require less force to lift the box? | d0046.png | null | A | {'A': 'Left Lever', 'B': 'Right Lever', 'C': 'Both require an equal amount of force', 'D': nan, 'E': nan, 'F': nan} | |
641 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0047.png>The person on the left is lower than the person on the right. What can the person on the right do in order to make the seesaw more level? | d0047.png | null | C | {'A': 'Slide forward', 'B': 'Sit up straight', 'C': 'Slide backward', 'D': 'Lean forward', 'E': nan, 'F': nan} | |
642 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0048.png>There is a balance scale with a weight of 40 lbs on the left side and 60 lbs on the right side, with the fulcrum closer to the left side. Is this scale balanced? | d0048.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
643 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0049.png>Assuming the boxes are made of the same material, which box will more easily slide down its ramp? | d0049.png | null | A | {'A': 'Left Box', 'B': 'Right Box', 'C': 'They will slide down with equal ease', 'D': nan, 'E': nan, 'F': nan} | |
644 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0051.png>If I pull the rope in the yellow arrow direction, would the heavy bronze metal hanging on the hook moves in the blue arrow direction? | d0051.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
645 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0052.png>If I pull the rope in the red arrow direction, would the heavy bronze metal hanging on the hook moves up? | d0052.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
646 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0053.png>If I pull the rope in the red arrow direction, would the heavy bronze metal hanging on the hook moves down? | d0053.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
647 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0062.png>In this pulley system, in order to move the orange brown rectangular metal up, do I need to pull the black rope down? | d0062.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
648 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0063.png>In this pulley system, in order to move the orange brown rectangular metal up, do I need to pull the black rope up? | d0063.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
649 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0064.png>In this pulley system, in order to move the orange brown rectangular metal up, in which direction should I pull the black rope? | d0064.png | null | B | {'A': 'Pull Upward', 'B': 'Pull Downward', 'C': 'Both Directions Work', 'D': "Both Direction Don't Work", 'E': nan, 'F': nan} | |
650 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0066.png>In this pulley system, in order to move the orange brown rectangular metal up, in which direction should I pull the black rope? | d0066.png | null | B | {'A': 'Pull Upward', 'B': 'Pull Downward', 'C': 'Both Directions Work', 'D': "Both Direction Don't Work", 'E': nan, 'F': nan} | |
651 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0068.png>In this pulley system, in order to move the orange brown rectangular metal up, in which direction should I pull the black rope? | d0068.png | null | B | {'A': 'Pull Upward', 'B': 'Pull Downward', 'C': 'Both Directions Work', 'D': "Both Direction Don't Work", 'E': nan, 'F': nan} | |
652 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0070.png>In this pulley system, in order to move the orange brown rectangular metal up, in which direction should I pull the black rope? | d0070.png | null | B | {'A': 'Pull Upward', 'B': 'Pull Downward', 'C': 'Both Directions Work', 'D': "Both Direction Don't Work", 'E': nan, 'F': nan} | |
653 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0072.png>In this pulley system, in order to move the orange brown rectangular metal up, in which direction should I pull the black rope? | d0072.png | null | B | {'A': 'Pull Upward', 'B': 'Pull Downward', 'C': 'Both Directions Work', 'D': "Both Direction Don't Work", 'E': nan, 'F': nan} | |
654 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0074.png>In the pulley system, if we pull the black rope in the green arrow direction, in which direction the blue bucket will go? | d0074.png | null | D | {'A': 'Going Downward', 'B': 'Going Leftward', 'C': 'Going Rightward', 'D': 'Going Upward', 'E': nan, 'F': nan} | |
655 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0075.png>In the pulley system, if we pull the black rope in the green arrow upwards direction, in which direction the red sheave will go? | d0075.png | null | C | {'A': 'Going Rightward', 'B': 'Going Leftward', 'C': 'Going Upward', 'D': 'Going Downward', 'E': nan, 'F': nan} | |
656 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0078.png>In the pulley system, if we pull the black rope in the green arrow direction, in which direction the blue bucket will go? | d0078.png | null | D | {'A': 'Going Downward', 'B': 'Going Leftward', 'C': 'Going Rightward', 'D': 'Going Upward', 'E': nan, 'F': nan} | |
657 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0082.png>In the pulley system, if we pull the black rope in the green arrow downwards direction, in which direction the lower red sheave will move? | d0082.png | null | B | {'A': 'The lower red sheave will not move', 'B': 'The lower red sheave will move upwards', 'C': 'The lower red sheave will move downwards', 'D': 'The lower red sheave will move leftwards', 'E': nan, 'F': nan} | |
658 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0085.png>In which direction will the rectangular brick go if we pull the rope on the right? | d0085.png | null | A | {'A': 'Going Upwards', 'B': 'Going Downwards', 'C': 'The rectangular brick will not move', 'D': 'Going Leftwards', 'E': nan, 'F': nan} | |
659 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0088.png>In which direction will the rectangular brick go if we pull the rope on the right? | d0088.png | null | A | {'A': 'Going Upwards', 'B': 'Going Downwards', 'C': 'The rectangular brick will not move', 'D': 'Going Leftwards', 'E': nan, 'F': nan} | |
660 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0089.png>If we want to move the rectangular brick upwards, in which direction should we pull the rope on the right? | d0089.png | null | B | {'A': 'Pull upwards', 'B': 'Pull downwards', 'C': 'The brick will not move no matter which direction we pull', 'D': 'The brick will always move no matter which direction we pull', 'E': nan, 'F': nan} | |
661 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0092.png>If we want to move the metal ring on the green paper clip downwards, should we reduce the weight of the metal ring on the red papar clip? | d0092.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
662 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0093.png>If we want to move the metal ring on the red paper clip upwards, should we increase the weight of the metal ring on the red papar clip? | d0093.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
663 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0094.png>If we want to move the metal ring on the red paper clip downwards, should we reduce the weight of the metal ring on the green papar clip? | d0094.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
664 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0096.png>If we pull the blue rope on the right, In which direction the trapezoid dark metal will? | d0096.png | null | A | {'A': 'Go upwards', 'B': 'Go downwards', 'C': 'It will not move', 'D': "It doesn't matter", 'E': nan, 'F': nan} | |
665 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0098.png>If we pull the blue rope on the right, In which direction the trapezoid dark metal will? | d0098.png | null | A | {'A': 'Go upwards', 'B': 'Go downwards', 'C': 'It will not move', 'D': "It doesn't matter", 'E': nan, 'F': nan} | |
666 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0100.png>If we pull the blue rope on the right, In which direction the trapezoid dark metal will? | d0100.png | null | A | {'A': 'Go upwards', 'B': 'Go downwards', 'C': 'It will not move', 'D': "It doesn't matter", 'E': nan, 'F': nan} | |
667 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0101.png>Two objects are connected by a thin wire passing through the fixed pulley. When the system reaches equilibrium, are the masses of the two weights equal? | d0101.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
668 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0102.png>Two objects are connected by a thin wire passing through the fixed pulley. When the object on the right accelerates to move downward, and the object on the left accelerates to move upward, is the object on the left heavier than the object on the right? | d0102.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
669 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0103.png>As shown in the figure, two objects are connected by a thin wire passing through the fixed pulley. If the mass of the left object is greater than the right object, will the left object accelerate and move downward? | d0103.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
670 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0104.png>A small ball is connected to the suspension of the car through a thin wire. According to the state of the ball and the string, does the car remain stationary for a long time? | d0104.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
671 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0105.png>A small block is connected to the car's suspension by a thin string. The car is moving to the right. Please answer, if the car suddenly stops, the block will: | d0105.png | null | C | {'A': 'Remain unchanged relative to the car', 'B': 'Move backward relative to the car', 'C': 'Move forward relative to the car', 'D': nan, 'E': nan, 'F': nan} | |
672 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0106.png>As shown in the picture, a small ball is connected to the car's suspension by a thin string. The car is moving to the right. Please answer, if the string suddenly breaks, will the ball remain unchanged relative to the car? | d0106.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
673 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0107.png>One object is connected to the ceiling by a first thin string, and another object is connected to the first object by a second thin string. Is the force on the first string greater than on the second one? | d0107.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
674 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0108.png>The balance scale is level, and the trays on both sides of the scale are the same distance from the center. Is the object on the left side heavier than the object on the right side? | d0108.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
675 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0109.png>An object is suspended from the ceiling by two thin strings, with the ends of the strings fixed at different positions on the ceiling. If the left string breaks, how will the object move? | d0109.png | null | A | {'A': 'Swing like a pendulum towards the right', 'B': 'Swing like a pendulum towards the left', 'C': 'Remain stationary', 'D': nan, 'E': nan, 'F': nan} | |
676 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0110.png>An object is suspended from the ceiling by two thin strings, with the ends of the strings fixed at different positions on the ceiling. If the right string breaks, how will the object move? | d0110.png | null | B | {'A': 'Swing like a pendulum towards the right', 'B': 'Swing like a pendulum towards the left', 'C': 'Remain stationary', 'D': nan, 'E': nan, 'F': nan} | |
677 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0111.png>There is a movable pulley system, with the rope tied to a fixed (immovable) point, the pulley attached to the object, and the other end of the rope is free. If the free end of the rope is now pulled upwards, in which direction will the object move? | d0111.png | null | A | {'A': 'Upwards', 'B': 'Downwards', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
678 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0112.png>If a balloon is completely submerged in water by hand, and then let go, how will the balloon move? | d0112.png | null | A | {'A': 'Move upwards in the water', 'B': 'Move downwards in the water', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
679 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0113.png>A flagpole stands on the ground, with the flag fluttering to the left. Does this mean the wind is blowing from left to right? | d0113.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
680 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0114.png>In the left pond, there is a doll in a small boat. In the right pond, there are two dolls in a small boat. Assuming all the dolls are identical and the boats are identical, which boat is sitting deeper in the water? | d0114.png | null | B | {'A': 'Left side', 'B': 'Right side', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
681 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0115.png>Two cups contain the same amount of water. A single object is placed into the left cup, and two objects are placed into the right cup. Assuming all three objects are of the same size and are completely submerged, which side's water level is higher? | d0115.png | null | B | {'A': 'Left side', 'B': 'Right side', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
682 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0117.png>A balance scale is shown in the picture, forcibly kept in equilibrium by hand, with objects of equal weight in both trays. The distance from the left tray to the base is less than that of the right tray. When the hand is released, will the scale tilt to the right? | d0117.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
683 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0118.png>There is a small ball connected to the ceiling by a thin string. The ball is forcibly pulled up and pressed against the left wall by hand. After letting go, how will the ball move? | d0118.png | null | A | {'A': 'Swing to the right like a pendulum', 'B': 'Remain stationary', 'C': 'Fall', 'D': nan, 'E': nan, 'F': nan} | |
684 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0119.png>There is a small ball connected to the ceiling by a thin string. The ball is forcibly pulled up and pressed against the left wall by hand. Without considering air resistance and other energy losses. After letting go, will the ball return to its initial position? | d0119.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
685 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0120.png>There are two sets of vertical strip-like objects. In the set on the left, the strip-like objects are closely packed together without any base. In the set on the right, the strip-like objects are arranged the same as on the left, but there are two shorter vertical supports on one side, parallel to the other strip-like objects, and a horizontal base at the bottom to support the objects and the short vertical supports. Overall, the two sets of objects are the same, except the combination on the right has added support structures. Now, if you push the upper left part of both sets of objects with your hand, which side is more likely to fall over? | d0120.png | null | C | {'A': 'The same', 'B': 'Right side', 'C': 'Left side', 'D': nan, 'E': nan, 'F': nan} | |
686 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0121.png>There is a balance scale with a square object on the left tray and a triangular object on the right tray. The distance from both trays to the base is equal. If the triangular object is lighter than the square object, which way will the balance scale tilt? | d0121.png | null | A | {'A': 'To the left', 'B': 'To the right', 'C': 'Remain level', 'D': nan, 'E': nan, 'F': nan} | |
687 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0122.png>There is a movable pulley system, with the rope tied to a fixed (immovable) point, the pulley attached to the object, and the other end of the rope is free. Is it more effort-saving to lift the object using the movable pulley system by lifting the free end of the rope compared to lifting the object directly? | d0122.png | null | YES | {'A': 'YES', 'B': 'NO'} | |
688 | mechanicalreasoning | Stage Formal Operational | TF | <image-placeholder: d0123.png>Now there are two catapults; the only difference is that the left catapult has a longer power arm than the right catapult. If you want to pry the circular object shown in the image, would the right catapult require less effort? | d0123.png | null | NO | {'A': 'YES', 'B': 'NO'} | |
689 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0124.png>There are two ramps of the same height: the one on the left is steeper than the one on the right. If identical balls are placed at the bottom of each ramp and pushed to the top, on which ramp is more force required to push the ball? | d0124.png | null | A | {'A': 'The left ramp', 'B': 'The right ramp', 'C': 'The same amount of force is required', 'D': nan, 'E': nan, 'F': nan} | |
690 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0125.png>Consider two scenarios: on the left, a ball is placed at the bottom of an incline; on the right, another ball of the same size rests on flat ground. If the goal is to raise both balls to the same vertical height, in which scenario is less force required to lift the ball? | d0125.png | null | A | {'A': 'Via the incline', 'B': 'Directly from the flat ground', 'C': 'The same amount of force is needed', 'D': nan, 'E': nan, 'F': nan} | |
691 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0126.png>Imagine two bridges with different designs: the first bridge is supported by two vertical pillars; the second bridge has additional cross-bracing between the two pillars for enhanced stability. With a sandbag of equal weight placed on each bridge, which bridge is more likely to withstand collapse? | d0126.png | null | B | {'A': 'The first bridge', 'B': 'The second bridge', 'C': 'Both bridges are equally stable', 'D': nan, 'E': nan, 'F': nan} | |
692 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0127.png>The image depicts a seesaw currently tilted to the left due to a square object placed at its left end and a triangular object at its right end. To restore balance to the seesaw, one could: | d0127.png | null | B | {'A': 'Move the triangular object toward left', 'B': 'Move the square object toward right', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
693 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0129.png>There are two identical springs fixed to the ceiling. A square object hangs from the left spring, and a triangular object hangs from the right spring. The triangular object is positioned higher than the square object. Which object is heavier? | d0129.png | null | A | {'A': 'The square object on the left', 'B': 'The triangular object on the right', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
694 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0130.png>There is a spring fixed to the ground with an object placed above it. Is the spring in a state of compression or extension? | d0130.png | null | B | {'A': 'Extension', 'B': 'Compression', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
695 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0137.png>In this picture, for the same bottle of cola, which placement method is less likely to roll, the one on top or the one on the bottom? | d0137.png | null | A | {'A': 'the top one', 'B': 'The bottom one', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
696 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0140.png>As shown in the picture, which standing posture is more likely to become tiring after standing for a long time? | d0140.png | null | B | {'A': 'Left side', 'B': 'Right side', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
697 | mechanicalreasoning | Stage Formal Operational | MC | <image-placeholder: d0141.png>As shown in the picture, between the two types of porcelain objects, which one is more likely to tip over? | d0141.png | null | A | {'A': 'The top one', 'B': 'The bottom one', 'C': nan, 'D': nan, 'E': nan, 'F': nan} | |
698 | mechanicalreasoning | Stage Formal Operational | MC | <video-placeholder: d0132.mp4>In the video, there are two blue rectangles: the left one is movable, and the right one is stationary. The goal is to adjust the position of the movable blue rectangle on the left so that the red ball can roll into the green box. At the end of the video, the red ball does not enter the green box. The most likely method to achieve the ball entering the green box by adjusting the position of the movable blue rectangle on the left is: | null | d0132.mp4 | C | {'A': 'The position of the movable blue rectangle remains unchanged', 'B': 'Remove the movable blue rectangle', 'C': 'Move the movable blue rectangle to the left', 'D': nan, 'E': nan, 'F': nan} | |
699 | mechanicalreasoning | Stage Formal Operational | MC | <video-placeholder: d0133.mp4>In the video, an attempt is made to adjust the release position of a blue object to force open a cover on a green box, allowing a red ball to roll into it. Part of the cover extends to the right side of the green box. Despite the efforts, the red ball does not successfully enter the green box by the end of the video. To ensure the ball's successful entry into the box, which of the following adjustment strategies is likely to be most effective? | null | d0133.mp4 | B | {'A': 'Increase the release height of the blue object', 'B': 'Slightly move the blue object to the right so that its impact point is exactly on the part of the cover extending out of the box', 'C': 'Decrease the release height of the blue object', 'D': nan, 'E': nan, 'F': nan} | |
700 | mechanicalreasoning | Stage Formal Operational | MC | <video-placeholder: d0134.mp4>The video showcases an experiment involving a blue seesaw, with a red ball placed on its left end. The aim is to adjust the position of a blue trapezoidal object on the right end of the seesaw to keep the red ball from falling off. After placing the blue trapezoid, the seesaw ends up tipping to the right, resulting in the ball rolling off. Which of the following is the most likely reason for the experiment's failure? | null | d0134.mp4 | B | {'A': 'The blue trapezoidal object was placed too far to the left', 'B': 'The blue trapezoidal object was placed too far to the right', 'C': nan, 'D': nan, 'E': nan, 'F': nan} |
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