Physics First Final Review - Energy/Work/Power

units for work are

• Newtons

• Joules

• meters

• seconds

 Work done = Force x _________

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

A 5000N block is lifted 10 m. How much work was done?

• 50000 J
• 5000 J
• 500 J
• 50 J

Tags

NGSS.HS-PS3-1

A force is a _____ or _______

• simple complex

• push pull

• up down

• in out

Which situation is work not done?

• lifting a 20 pound box off the floor
• holding a 20 pound box above the floor
• sliding a 20 pound box across the floor
• sliding a 20 pound box up an inclined plane

The unit used to measure work is the 

• Watt
• Newton
• Joule
• meter

The unit used to measure power is the 

• Watt
• Newton
• Joule
• Newton*meter

True or false

You do work only when you exert a force on an object and move it int that direction.

• true

• false

work is a measurement of how much force is applied over a certain

• distance
• velocity
• shape
• size

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