Summer School Physical Science - CH 5 - Section I Quiz

The rate at which work is done is _____________

• efficiency

• power

• effort time

• force

__________ is transferred to an object when work is done.

• Energy

• Motion

• Force

• Friction

The unit of power is the ______.

• joule

• watt

• MA

• second

True or false
You do work only when you exert a force on an object and move it

• true
• false

Two factors that determine work are

• size of the force, and distance
• size of the force, and type of force
• mass, and distance

units of force are

• netwons
• grams
• joules
• meters

units for work are

• netwons
• joules
• meters
• seconds

if you push a cart with a force of 60 N for 2 m... how much work have you done

• 120 J
• 30 J
• 120 N 
• 30 N

If Jay Loppy pushes his van 20 meters how much work is done?

• 2,000J

• 40,000J

• 10,000J

• 800,000J

If the mystery machine moves 100 meters how much work is done?

• 130,000,000J

• 70,000J

• 100,000J

• 30,000J