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3 cards from this section. Quick, good the night before a test.
Define work in your own words.
Think about how effort and movement relate.
What is kinetic energy?
Remember the formula for kinetic energy.
What is the definition of work in physics?
Think of how work is calculated mathematically.
Which of the following scenarios depicts energy being used?
Consider different forms of activity that expends energy.
A 5 kg box is lifted to a height of 2 meters. Calculate the work done against gravity.
Recall the weight and the height the box is lifted.
If a person exerts a force of 30 N to push an object a distance of 3 m in the direction of the force, what is the power exerted if the action takes 4 seconds?
Break down the calculation into work done and then use it to find power.
4 more questions in this section. Enroll free to practise them all.
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