Calculating Work & Power Practice Questions

Newtons are the correct unit for which of the following?

• Force

• Work

• Power

• Acceleration

How do we calculate work?

• W = F * d

• w = f / d

Which is the correct unit for work?

• Joules

• Newton

• meter

• Watts

It took 500 Newtons of force to push a car four meters. How much work was done?

• 2000 J

• 125 J

• 0.008 J

• 500 J

1. A book weighing 1.0 newton is lifted 2 meters.  How much work was done?

• 2 J
• 0.5 J

A force of 15 newtons is used to push a box along the floor a distance of 3 meters.  How much work was done?

• 3 J
• 45 J

It took 500 newtons of force to push a car 4 meters.  How much work was done?

• 2,000 J
• 125 J

If a lion drags his prey 10 meters to his den doing 500 joules of work, how much force did he use?

• 50 Newtons
• 500 Joules
• 50,000 Newtons
• 10 Newtons

If a lion drags his prey 10 meters to his den doing 500 joules of work, how much force did he use?

• 50 Newtons
• 500 Joules
• 50,000 Newtons
• 10 Newtons

Which of the following IS NOT an example of work being done?

• Pushing a cart in a store
• Shooting a basketball
• A stand off in tug of war
• Running a mile