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# 7th Grade Chapter 4 Lesson 5 Slideshare

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### 7th Grade Chapter 4 Lesson 5 Slideshare

1. 1. Pgs. 145-151 For Student Use Only
2. 2. Energy and Work are the same. -Energy is the ability to do work - Work is a force applied to an object (a push or pull)
3. 3. Potential and Kinetic Energy are different. -Potential Energy is stored energy. - Kinetic Energy is energy in motion.
4. 4. Can energy change from one form to another? -Kinetic- energy in motion -Potential- stored energy -Radiant- energy in the form of electromagnetic waves
5. 5. What is the law of conservation of matter and energy? <ul><li>- Energy (and matter) are transferred from one object or state to another. </li></ul><ul><li>- Energy and Matter are not changed by natural forces. </li></ul>
6. 6. What is the first law of thermodynamics? <ul><li>All of the above </li></ul><ul><li>None of the above </li></ul><ul><li>Matter is not created or destroyed </li></ul><ul><li>The total amount of matter and energy in the universe is constant </li></ul><ul><li>For every action there is an equal and opposite reaction </li></ul>
7. 7. How does an object gain energy? <ul><li>Note- </li></ul><ul><li>-An object in rest will stay at rest until a force moves it. </li></ul><ul><li>An object in motion will stay in motion until force is acted upon it. </li></ul><ul><li>You must do work in order to gain energy. </li></ul>
8. 8. What is the transfer of energy? <ul><li>For Example: </li></ul><ul><li>When a basketball is bounced energy can also be transferred into sound, heat, ground waves. </li></ul>
9. 9. <ul><li>What are the three types of heat transfer? </li></ul><ul><ul><li>Conduction, Convection, and Radiation. </li></ul></ul><ul><li>Why is energy never lost? </li></ul><ul><ul><li>All energy is transferred from one to another. </li></ul></ul>NOTE: