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- 1. Multiple ChoiceAccording to the scientific definition of work, pushing on a rock accomplishes no work unless there isan applied force greater than its weighta net force greater than zeroan opposing forcemovement in the same direction as the force
- 2. Multiple ChoiceThe metric unit of a joule (J) is a unit ofpotential energyworkkinetic energyall of the above
- 3. Multiple Choicepower israte at which energy is expandedwork per rate of timerate at which work is doneall of the above
- 4. Multiple ChoiceA Nm/s is a unit ofenergypowerforcework
- 5. Multiple ChoiceThe kilowatt-hour is a unit ofpowerwork
- 6. Multiple ChoiceThe potential energy of a box on a shelf, relative to the floor, is a measure ofthe work done putting the box on the shelf from the floor.the energy the box has because of its position above the floor.both listed are correct
- 7. Multiple ChoiceWhich quantity has the greatest influence on the amount of kinetic energy that a large truck has while moving down the highway?velocitymassweightsize
- 8. Multiple ChoiceMost energy comes to and leaves the earth in the form ofnuclear energychemical energyradiant energykinetic energy
- 9. Multiple ChoiceThe law of conservation of energy is a statement thatenergy must be conserved and you are breaking a law if you waste energy.the total amount of energy is constant.
- 10. Multiple ChoiceEnergy isability to do workwork created to create potential or kinetic energywork that can be done with PE or KEall of the above
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