Physical Science Calculating Work

Newtons are the correct unit for which of the following?

• Force

• Work

• Power

• Acceleration

In order to do work on an object, the force you exert must be...

• The maximum amount of force you are able to exert.
• In the same direction as the object's motion.
• In a direction opposite to Earth's gravitational force.
• quick and deliberate.

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

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

• 2 J
• 0.5 J

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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

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units for work are

• newtons

• joules

• meters

• seconds

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work transfers

• sweat
• energy
• velocity
• effort

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What is the formula for work?

• Force = work x distance
• Distance = force x work
• Work = force x distance
• Work = force x mass

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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