Work and Power Calculation

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

units of force are

• netwons
• grams
• joules
• meters

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

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 N
• 6.0 J
• 54 J
• 27 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 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

 Work done = Force x _________

• a. distance
• b. acceleration
• c. velocity
• d. speed

A force of 100 newtons was necessary to lift a rock.  A total of 150 joules of work was done.  How far was the rock lifted?

• 1.5m
• 15,000 m

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