Work Power & Energy

Which one is a unit of distance?

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

Work = Force x _________

• distance

• acceleration

• velocity

• 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

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

Fred kicks a ball with a force of 20N to George, who is 5m away. How much work was done to the ball?

• 25 J

• 100 J

• 4 J

• 75 J

Which of these is a measurement of power?

• 100 joules
• 100 watts
• 100 meters per second
• 100 hertz

What is the equation for calculating power?

• distance / time
• work x time
• work / time
• force x distance

A car lift does 500 J of work in 25 seconds. How much power is the car lift putting out?

• 0.05 W

• 20 W

• 12500 W

• 2000 W

What is the unit of measurement for Power?

• Joules
• Newtons
• Watts
• Meters