3. What is used when force is applied?
. heat
friction
light O er
energy
4. What are push and pull?
forces
forms of energy
forms of electricity
forms of machines
5. In which of the following events is work not done?
when a ball moves a short distance
when a ball does not move
when a ball falls from a height
when a ball is rolling
Answers
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3. energy
4. forces
5. when a ball does not move
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