Work and Energy Practice

It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box in Joules?

• 200 J

• 20.0 J

• 100 J

• 10 J

Tags

NGSS.HS-PS3-1

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 you do 40 joules of work lifting a 10N box, how high is the shelf you move it to.

• 400m

• 40m

• 50m

• 4m

You apply a force of 18 N to a dresser and move it 3.0 m. How much work did you do on the dresser?

• 54 J

• 6.0 J

• 21 J

• 27 J

I do 132 Joules of work on a bookcase. If I apply a force of 6 Newtons, how far have I moved the bookcase?

• 22 meters

• 792 meters

• 17 meters

• 320 meters

True or false: when the distance an object moves is zero the work done on the object is also zero.  

• True
• False

Energy is the ability to 

• do work
• sleep
• eat

Tags

NGSS.MS-PS3-5

The Law of Conservation of Energy states:

• energy can be created
• energy can be destroyed
• energy cannot be created or destroyed

Which of the following has kinetic energy?

• a rock poised for a fall
• an archer’s bow that is drawn back
• a rolling bowling ball
• a car waiting at a red light