Adaptive Practice
Work and Energy
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Question 1 of 10
⏱ 0:30
Easy
What is the SI unit of work?
Easy
When is the work done by a force zero?
Medium
A person lifts a 10 kg mass to a height of 5 m. What is the work done against gravity? (g = 9.8 m/s²)
Medium
Which of the following is an example of negative work done?
Medium
If the kinetic energy of a body is doubled, by what factor does its velocity increase?
Easy
A body of mass 2 kg is moving with a velocity of 3 m/s. What is its kinetic energy?
Medium
The work-energy theorem states that the work done on an object is equal to its change in:
Easy
Potential energy of an object depends on:
Medium
A body is thrown vertically upwards with velocity ‘u’. At the highest point, its kinetic energy is:
Hard
A 5 kg object is lifted to a height of 10 m and then dropped. Just before hitting the ground, its kinetic energy is: