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Energy Conversions.

Published byRandall Gilbert Modified over 6 years ago

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Presentation on theme: "Energy Conversions."— Presentation transcript:

1 Energy Conversions

2 Law of Conservation of Energy
Energy cannot be created or destroyed but it can change forms. We call that energy conversion or transformation

3 Energy conversions Any conversion of energy ALWAYS include some thermal energy. Sometimes it is the result of friction, a force that opposes motion.

4 Closed system A closed system is a well-defined group of objects that transfer energy between one another. Ex. Roller coaster or a camera. All energy and all matter remain in the system. (This is not very realistic).

5 How to we determine energy conversions?
Start with the energy you have then… …….list every energy that is a result of that first energy working!

6 What energy transformations happen in a blow dryer?

7 Blow dryer Electrical to thermal (heat) sound (noise) light (heat source) & kinetic/mechanical (fan)

8 What are the energy transformations that happen with a microwave?

9 Electrical to Light, thermal, sound & kinetic/mechanical
Microwave Electrical to Light, thermal, sound & kinetic/mechanical

10 What are the energy transformations that happen when you drive a car?

11 Car Chemical energy (gas) to Light, sound, electrical, thermal, & kinetic/mechanical

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