1. Energy

2. Energy Energy is the ability to do work.
Energy causes motion and causes changes in matter.

3. There are many kinds of energy:
M - Mechanical
E - Electrical
L - Light
T - Thermal
S - Sound

4. Mechanical Energy
The energy related to the motion of an object

5. Mechanical Energy Potential Energy – stored energy.
The object is not moving.

6. Mechanical Energy Kinetic Energy – energy caused by motion
The object is moving.

7. Electrical Energy
Electricity is produced when electrons move from one place to another place.

8. Light Energy
Light energy uses waves to travel through space. Sources of light can be a light bulb, a fire, the sun, a candle, or a flashlight.

9. Thermal Energy
The increase or decrease of heat. Heat is caused when particles in matter move. As particles move more quickly, the object gets hotter.

10. Thermal Energy

11. Sound Energy
Sound is created by vibrations and travels in waves. Can travel in different media (solid, liquid, gas).
Force must be applied to make an object vibrate.
The vibrations from a vibrating object spread out in waves. The waves carry energy from the sound source outward in all directions.

12. Sound Energy

13. Questions

14. What is electrical energy?

15. A form of energy that is produced when electrons move from one place to another place

16. How is sound produced?

17. Vibration