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| Experimental components |
Base, support rod, rotating wheel, axle |
| Experimental process | Thread the wire through the small holes at both ends of the rotating wheel axle and fix it on the crossbar of the bracket. Adjust the position of the rotating wheel to keep the axle level. Use your hand to rotate the axle to gradually raise the rotating wheel, while ensuring that the thin wires on both sides are wound around the axle as the rotating wheel rises. When the rotating wheel is wound to the top (near the crossbar), release your hand and let the rotating wheel rotate and fall under the action of gravity, and observe the changes in the motion state of the rotating wheel. |
| Experimental phenomena | At the moment of release, the rotating wheel rotates and falls under the action of gravity, and it rotates faster and faster. After the rotating wheel falls to its lowest point, it no longer continues to fall, but at this time, due to inertia, it still maintains rotation. Due to its rotation, it automatically winds up again and rotates upwards. When it rises slightly lower than its highest point last time, it stops rising and begins to fall under gravity. This process of repeated rising and falling continues until all of its stored gravitational potential energy is completely exhausted by kinetic energy and mechanical energy. |
| Experimental conclusion | The process of multiple automatic repetitions of rising and falling of the rotating wheel is actually a process of mutual conversion between kinetic energy and potential energy. This experiment shows that kinetic energy and potential energy can be converted into each other. |
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In this case, we will usually offer you a refund or send a replacement as soon as the problem is confirmed. Sometimes you may need to ship the defective item back to us for free repair service or a new replacement. Customer should cover the return shipping fee, and labkitsforstudents.com is responsible for the shipping costs of arranging reshipment by air mail.
