Energy.

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Presentation transcript:

Energy

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

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

Mechanical Energy The energy related to the motion of an object

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

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

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

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.

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.

Thermal Energy

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.

Sound Energy

Questions

What is electrical energy?

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

How is sound produced?

Vibration