Work, Power, and Energy

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

• 2 J
• 0.5 J

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-2

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

Tags

NGSS.HS-PS3-1

It took 50 joules to push a chair 5 meters across the floor. With what force wast the chair pushed?

• 250N
• 10N

Tags

NGSS.HS-PS2-1

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

• 2,000 J
• 125 J

Tags

NGSS.MS-PS3-5

A young man exerted a force of 9,000 newtons on a stalled car but was unable to move it.  How much work was done?

• 9,000 J
• 0 J= No work

A set of pulleys is used to lift a piano weighing 1,000 newtons.  The piano lifted 3 meters in 60 seconds  How much power is used?

• 16.67 watts
• 50 watts

How much power is used if a force of 35 newtons is used to push a box a distance of 10 meters in 5 seconds?

• 70 watts
• 1750 watts

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

• 200 J
• 20.0J
• 2 J
• 200 N

If a student uses 10 Newtons of Force to push a chair 5 meters, how much is work is being done?

• 2 Joules
• .5 Joules
• 50 Joules
• 20 Newtons

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

• 810 meters
• 792 meters
• 22 meters
• 320 meters