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Question

x.Hmle="text-align: left; width: 1028px; margin-top: 0.5em; margin-bottom: 0.5em; "> A boy was riding his bike on a level road. He stopped pedaling and applied the brakes. When he applied the brakes, the brake pads squeezed the wheel, and the bike slowed down and stopped. After the bike stopped, the brake pads had more thermal energy. Why did the thermal energy of the brake pads increase? A boy was riding his bike on a level road. He stopped pedaling and applied the brakes. When he applied the brakes, the brake pads squeezed the wheel, and the bike slowed down and stopped. After the bike stopped, the brake pads had more thermal energy. Why did the thermal energy of the brake pads increase?

Explanation / Answer

Because some of the motion energy (kinetic energy) that the bikeand the boy had was converted into thermal energy of the brakepads. Spring 2 has more elastic energy because it is compressed more thanSpring 1. Ice Cube 1 has more thermal energy because it is at a highertemperature than Ice Cube 2.

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