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3 cards from this section. Quick, good the night before a test.
What is energy?
Think of what is needed to perform work.
Define kinetic energy.
Remember the formulas we discussed.
What is the SI unit of energy?
Think about the unit used to measure work.
True or False: Kinetic energy increases with increased velocity.
Consider the kinetic energy formula.
A rock weighs 10kg and is dropped from a height of 15m. Calculate the kinetic energy just before it strikes the ground. (Assume g = 9.8 m/s²)
Use conservation of energy principles to solve.
A vehicle travels at 60 km/h. Find its kinetic energy if its mass is 1000 kg (convert speed to m/s).
Remember to convert units where necessary.
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