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2 cards from this section. Quick, good the night before a test.
What is the formula for work done?
Think about the force and displacement directions.
Calculate the work done if a force of 10 N moves an object 5 m in the direction of the force.
Multiply force by distance.
What is the relationship between work and energy?
Think of how work affects energy in physics.
True or False: Kinetic energy can be negative.
Consider the formula for kinetic energy.
A 5 kg block slides down a frictionless incline of height 10 m. Calculate its speed at the bottom of the incline.
Think about energy conversion principles.
An elevator transports a 1200 kg load to a height of 30 m. If the elevator's efficiency is 80%, calculate the energy consumed.
Break down energy calculations into potential energy.
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