A person holds a weight motionless above ground. Is work being done? | Card: 3 / 48 |
A ball falls freely under gravity. What type of work is done? | Card: 11 / 48 |
Which forces are examples of conservative forces? | Card: 23 / 48 |
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True or False: When only conservative forces act, mechanical energy is conserved. | Card: 39 / 48 |






