Topic 3 - Energy, Friction and Efficiency

Question 1

Kinetic Energy

Answer 1

• Energy of movement
• Often is transferred - comes from another source
  Ex. Person walking

Question 2

Potential Energy

Answer 2

• Stored energy in a object or system
• Ready to use
  Ex. filled ballon, human fats

Question 3

How is Energy is Transferred in a Bike?

Answer 3

Chemical - Kinetic - Mechanical

Question 4

How is Energy Transferred in a Car?

Answer 4

Chemical - Kinetic - Mechanical - Electrical - friction, lights, sound

Question 5

How is Energy Transferred in Lights?

Answer 5

Chemical - Kinetic - Mechanical - Electrical - Light

Question 6

Energy Transmission

Answer 6

• Energy that does not change form
• Only changes direction