4 during the second step, the marble travels down the ramp and hits dominoes, which then begin to fall. what…
4 during the second step, the marble travels down the ramp and hits dominoes, which then begin to fall. what happens to the marbles energy?\na the marbles energy disappears as the marble stops moving\nb the marbles kinetic energy decreases when its transferred to the dominoes\nc the marbles potential energy increases as its kinetic energy decreases\nd the marbles energy does not change when it hits the dominoes
Answer
Answer:
B. The marble's kinetic energy decreases when it's transferred to the dominoes
Brief Explanations:
Energy cannot be created or destroyed (conservation of energy). When the moving marble hits the dominoes, it transfers some of its kinetic energy to the dominoes to make them fall, so the marble's kinetic energy decreases. Option A is wrong because energy does not disappear. Option C is wrong because the marble is moving down the ramp, so its potential energy decreases as kinetic energy increases (before hitting dominoes), and this does not apply when hitting dominoes. Option D is wrong because energy is transferred, so the marble's energy changes.