Work and Power

Work divided by time equals...

• energy
• power

The unit of work is the ...

• joule
• force

Force multiplied by distance equals...

• work
• power

The unit used to measure power is the 

• Watt
• Newton
• Joule
• Newton*meter

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

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

A 50N block is lifted 10 m. How much work was done?

• 50000 J
• 5000 J
• 500 J
• 50 J

Tags

NGSS.MS-PS3-4

 Work done = Force x _________

• distance
• acceleration
• velocity
• speed

Force is a _____ or _______

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

Tags

NGSS.MS-PS2-1

What is the unit for force?

• Kilogram (Kg)
• Newton (N)
• Joule (J)
• Watt (W)

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