Chapter 4 Reading Guide

Chapter 4 reading guide Name______4-1 Nature of energy

I. What is energy List 3 examples ______

A. Energy is the ability to cause a ______

B. List 4 different energy forms ______

C. How is energy similar to money? ______

II. Kinetic energy define ______

A. KE. Formula? ______Units K.E.______m?______v? ______

B. Applying math pg 102. 1.What would the K.E. be if the mass is doubled to 120kg? ______compare______

2. What would the K.E. be if the speed is doubled to 6m/s? ______compare______

III. Potential energy define ______

A. Elastic potential energy example ______

B. Chemical potential energy define______

C. Figure 3. Which substance has the higher chemical P.E. ? ______

D. Gravitational P.E. define ______

G.P.E. formula? ______Units G.P.E______m______g______h______

E. Applying math page 104 1. What would G.P.E. be if “m” double to 14?______compare______

2. What would G.P.E. be if “h” double to 8? ______compare______

4-2 Conservation of energy pg 107 I. Changing forms of energy A. Do figure question 5. ______

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B. Describe 3-4 energy transformations when gas is burned in your car. ______

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______II. Conversions of K.E. and P.E. A. Define mechanical energy ______

B. Answer reading check pg. 109 ______

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C. p.110 Where is the P.E. the highest?______Where is K.E. 0? ______K.E. Highest?______

D. Define the law of conservation of energy. ______

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E. Fig 10. Explain how electrical energy is conserved with the blow dryer. ______

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F. pg 112. Explain why slowing down on a swing is not a violation of the law of conservation of energy

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G. What is the process call that the sun converts mass to energy? ______

H. What is the process call that nuclear power plants convert mass to energy? ______

I. Define a food calorie (C) . ______

J. How many calories does 1 gram of fat have? ______carbohydrate? ______Protein?______

K. Answer figure question 13. ______

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L. Do you burn any calories sleeping? Explain using some numbers! ______

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