1. Unit 6
Forms of Energy
(6.2)

2. What is Gravitational Potential Energy?
Potential energy due to an object’s position
P.E. = mass x
height x gravity
Don’t look down, Rover!
Good boy!

3. PE = mgh m = mass (kg) h = height (m) g = accel due to gravity
(9.8 m/s2)

4. KE = 1/2 m v2 .25 kg baseball 4 kg bowling ball at 50 m/s at 10 m/s
= .5 (.25kg) (50 m/s)2
= 312 J
4 kg bowling ball
at 10 m/s
= .5 (4kg) (10m/s)2
= 200 J

5. Ball speeds up
Ball slows down

6. Energy Changes Forms PE PE KE PE KE

7. Mechanical Energy

8. Thermal Energy

9. Electromagnetic Energy

10. Sound Energy

11. Nuclear Energy

12. Chemical Energy

13. Electrical Energy