Chapter 12: Work and Energy (PS)

Which one is a unit of mass?

• meter (m)
• gram (g)
• Joule (J)
• Newton (N)

Which one is a unit of distance?

• meter (m)
• gram (g)
• liter (L)
• Joule (J)

Force is a _____ or _______

• simple    complex
• push     pull
• up      down
• in      out

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

 Work done = Force x _________

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

The unit used to measure work is the 

• Watt
• Newton
• Joule
• meter

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

What is work?

• A push or pull.
• When the object moves in the same direction in which the force is exerted.
• A change in energy.
• The rate at which energy is transferred.

Which is doing work?

• pushing a wall
• holding a box
• picking up a pencil
• sitting in a chair

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

• True
• False

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.MS-PS3-5