Practice Work (10.1) - Work and Energy

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10 questions

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6 sample questions

Question 1.
What is the scientific definition of work?
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Think about the two conditions that must be met.
Question 2.
If I push a stationary wall, am I doing work?
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Consider if the wall moves at all.
3Question 3.
What must occur for work to be done in science?
- A force is applied
- There is displacement
- Both A and B
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Recall the definition of work.
4Question 4.
If an object moves downward under gravity without any opposing force acting, what type of work is done?
- True
- False
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Think about the direction of the gravitational force.
Question 5.
An athlete carries a 15 kg backpack while running 30 m at a height of 1.5 m. Calculate the total work done against gravity and during displacement.
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Break it down into two parts: work against gravity and work during movement.
Question 6.
A cyclist exerts a force of 50 N to pedal 200 m uphill against gravity. Calculate the work done.
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Ensure to consider only the force in the direction of movement.

6 more questions in this section. Enroll free to practise them all.