Unit 3: Work and Power Practice

The SI Unit for Work

• Newton (N)
• Joule (J)
• Second (s)
• Watt (W)

The SI Unit for Force

• Newton (N)
• Joule (J)
• Second (s)
• Watt (W)

The SI Unit for Time

• Newton (N)
• Joule (J)
• Second (s)
• Watt (W)

What is the formula for Work?

• E=mc²
• W= F x d
• P = W/T

F=200 N
d=50 m
w=??

• 4 J
• 0.25 J
• 250 J
• 10,000 J

If 150 Joules of work is needed to move a box 10 meters, what force was used? 

• 1500 N
• 15 N
• 1.5 N
• 150 N

What kind of energy is in a battery?

• Potential
• Kinetic

Find the distance an object traveled if a force of 350 N acted on it to produce 0 work?

• 3 m
• 2 m
• 1 m
• 0 m

How far does a car that weighs 5,000 N go if 18,000 J of work is done on it?

• 3.8 m
• 3.7 m
• 3.2 m
• 3.6 m

The SI Unit for Mass?

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