Download Chapter 7 Section 1 Outline Guide

Chapter 4 Section 2 Outline Guide
Directions: Copy this outline on your own paper. Write each statement and use the book to find the
missing parts of each statement. You will hand in this outline at the end of class, so you must finish it
today.
II. Conservation of Energy
A. Changing Forms of Energy
 Energy can change from one ______ to another.
1. Transforming Electrical Energy
 Light bulbs transform _______ energy into light.
 Some of the electrical energy from a light bulb can be converted to _______ energy.
2. Transforming Chemical Energy
 Fuel stores energy in the form of _______ potential energy.
 An engine transforms chemical potential energy stored in gasoline molecules to _______ energy.
 Green plants convert light energy from the Sun into energy stored in chemical _______.
B. Conversions Between Kinetic and Potential Energy
 _____ is the total amount of kinetic and potential energy in a system.
 The math formula for mechanical energy is _______________.
 Mechanical energy is energy due to the _______ and the ______ of an object.
1. Falling Objects
 As an apple falls, it loses height so its gravitational potential energy ________.
 As an apple falls, potential energy is _______ into kinetic energy as its velocity increases.
2. Energy Transformations in Projectile Motion
 Energy transformations occur in projectile motion when an object moves in a ______ path.
 Draw and explain Figure 8 on page 109. (You don’t need to write this question, just draw)
2. Energy Transformations in Swing
 As a swing rises, you lose _______ but gain _______.
 At the top of a swing’s path, _______ energy is at its greatest.
 As a swing accelerates downward, ______ energy changes to _______ energy.
 At the bottom of a swing’s path, _____ energy is at its greatest and ______ energy is at its minimum.
 As you swing back and forth, energy continually converts from ______ to ________ and back to _______.
C. The Law of Conservation of Energy
 Energy can change from one form to another, but the _____ amount of energy never changes.
 The law of conservation of energy states that energy cannot be _______ or _______.
 The total amount of energy in the ______ does not change.
1. Conserving Resources
 The law of conservation of energy is a _________ principle.
2. Is Energy Always Conserved?
3. The Effect of Friction
 _______ and _______ cause some mechanical energy to change to thermal energy.
4. Converting Mass Into Energy
 A special kind of energy conversion - ________ - takes place in the Sun and other stars.
5. Nuclear Fission
 _______ converts small amounts of mass into enormous quantities of energy.
 The process of _________ is used by power plants to produce electrical energy.
C. The Human Body – Balancing the Energy Equation
 Some of the chemical energy in your body is used to maintain a nearly constant internal _________.
1. Energy Conversions In Your Body
 The complex ______ and ______ processes going on in your body obey the law of conservation of energy.
 Your body stores energy in the form of _____ and other chemical compounds.
 To maintain a healthy ______, you must have a proper balance between energy contained in the food you eat
and the energy your body uses.
2. Food Energy
 The food _______ is a unit used by nutritionists to measure how much energy you get from various foods.
 One calorie is equal to about ________ Joules.
 Every gram of fat a person consumes can supply ________ calories.
 Carbohydrates and proteins each supply about ______ calories of energy per gram.