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4 cards from this section. Quick, good the night before a test.
What is the formula for work?
Think about how direction affects work.
What is the unit of work?
It is named after a famous scientist.
What is the work done if a force of 20 N moves an object 10 m in the same direction?
Multiply force by distance.
True or False: Work can be done when there is no movement.
Consider the definition of work.
A 70 kg box is lifted to a height of 5 meters. Calculate the work done against gravity.
Use the weight force (mg) for work against gravity.
If a person exerts 500 J of work in 50 seconds, what is their power output?
Remember, power measures how quickly work is done.
5 more questions in this section. Enroll free to practise them all.
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