What Is Work?

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.HS-PS2-1

NGSS.HS-PS2-3

 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.

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

A force exerted over a distance to move an object is ______________________.

• power
• work
• momentum
• Watt

Tags

NGSS.MS-PS3-5

Which is doing work?

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

Which of the following is the best example of work being done? 

• doing homework
• lifting a box
• pushing a stationary box
• holding a box