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5 cards from this section. Quick, good the night before a test.
What is the formula for calculating work?
Think about the components involved in applying a force and moving an object.
Name the SI unit of work.
What is the relationship between newtons and meters?
Which of the following formulas correctly represents work?
Consider how displacement affects the work done.
True or False: The SI unit of power is Joules per second.
Remember the relationship between power and energy.
If a force of 10 N is applied at an angle of 30 degrees to the horizontal, and the displacement is 5 m, calculate the work done.
Calculate cosine of the angle first before multiplying.
A 2 kg object is dropped from a height of 10 m. Calculate its potential energy at the top and its kinetic energy just before it hits the ground.
Use the energy conservation principle to find KE before impact.
6 more questions in this section. Enroll free to practise them all.
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