1-18-2008 Lecture 7 (Chapter 4)

1-18-2008 Lecture 7 (Chapter 4) - Chapter 4: 4.1 Matter and...

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Chapter 4: 4.1 Matter and Energy in Everyday’s life Matter – is material such as rocks, water, air. Energy – is what makes matter move! Energy is measured in many different units. The metric unit of energy used by scientists is Joule 4184 joules = 1 calorie Basic types of Energy - Kinetic – motion - Potential – stored energy (gravitational, electric)
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