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4 cards from this section. Quick, good the night before a test.
What is the formula for calculating work?
Consider the relationship between force and distance.
What is the SI unit of work?
What does one Joule represent?
What is work measured in?
Recall the SI unit for energy.
Power is defined as the rate at which what is done?
Think about how fast you can do a job!
A cyclist performs 150 J of work against gravity to climb a hill. If their mass is 75 kg, what is the height of the hill?
Rearrange the potential energy formula to isolate height.
A car accelerates from rest to a speed of 30 m/s. If it has a mass of 1000 kg, calculate the kinetic energy and the work done to achieve this speed.
Use the kinetic energy formula to calculate the energy needed.
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