Work and power
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6 Terms
What is meant by work done?
Work is done when a force moves an object in the direction of the force applied.
What is the relationship between work done and energy transfer?
The amount of work done on an object is equal to the amount of energy transferred to it.
What is gravitational potential energy?
It is the energy stored in an object due to its position in a gravitational field—higher objects have more GPE.
What is kinetic energy?
Kinetic energy is the energy an object has due to its motion.
How are GPE, KE, and work done linked?
Conservation of energy means energy can change form—GPE can convert to KE or be used to do work, but the total energy remains the same.
What is power?
Power is the rate at which energy is transferred or the rate at which work is done.
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