Work and Power Pt.2

What is the unit of Work?

• Newton

• Watson

• Joules

• Watt

If a kid pushes a 200N a distance of 3m, what is the work done?

• 200J

• 600J

• 66J

• 30J

Tags

NGSS.MS-PS2-2

What is the unit of Power?

• Newton

• Watson

• Joule

• Watt

If a kid pushes at 200N a distance of 3m, and does so in 100 seconds, what is the power used?

• 6 Watts

• 1.5 Watts

• 30 Watts

• 10 Watts

Tags

NGSS.HS-PS3-2

How much work was done to move the object by 7 meters?

• 11J

• 14J

• 28J

• 40J

A person lifts a 5kg object by 2 meters, how much work was done?

• 10J

• 100J

• 30J

• 20J

How long does it take to do 500J of work and use 1000 Watts of power?

• 1s

• 1500s

• 0.5s

• 2s

This equation can be rewritten as:

• KE=distance

• F=ma

Tags

NGSS.HS-PS2-1

If you do work of 200J on an object, what will be the KE gained by that object?

• 0J

• 200J

• need more information

You (50kg) do 200J of work on your bike (30Kg), what will be the velocity gained?

Tags

NGSS.HS-PS2-1