Forms of Energy Transfers and Transformations Particles in Motion

[Pages:91]Chapter Introduction

Lesson 1 Forms of Energy

Lesson 2 Energy Transfers and Transformations

Lesson 3 Particles in Motion

Chapter Wrap-Up

What is the difference between energy transfers and energy transformations?

What do you think?

Before you begin, decide if you agree or disagree with each of these statements. As you view this presentation, see if you change your mind about any of the statements.

Do you agree or disagree?

1. An object sitting on a high shelf has no energy.

2. There are many forms of energy.

3. In most systems, no energy is transferred to the environment.

Do you agree or disagree?

4. Some forms of energy are replenished naturally.

5. Only particles that make up moving objects are in motion.

6. Thermal energy can be transferred in several ways.

Forms of Energy

? How do potential energy and kinetic energy differ?

? How are mechanical energy and thermal energy similar?

? What two forms of energy are carried by waves?

Forms of Energy

? energy ? potential energy ? chemical energy ? nuclear energy ? kinetic energy ? electric energy

? mechanical energy

? thermal energy ? wave ? sound energy ? radiant energy

Energy

? Energy influences everything in your life, including the climate, the economy, and your body.

? Scientists define energy as the ability to cause change.

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