1. What is Energy? Forms of Energy
Chapter 5 Section 1 & 2
Pages 146 – 155

2. I. Energy, Work, and Power
a. The ability to do work or cause change is called __ENERGY__.
1. Works and Energy
a. When an __OBJECT__ or living thing does __WORK__ on another object, some of its __ENERGY__ is transferred to that object.
b. __WORK__ is __ENERGY__

3. 2. Powers and Energy
a. If the transfer of __ENERGY__ is __WORK__, then __POWER__ is the rate at which energy is __TRANSFERRED__, or the amount of __ENERGY__ transferred in a unit of time.
b. Power = __ENERGY TRANSFERRED__ / __TIME__
c. __POWER__ is involved whenever __ENERGY__ is being transferred.
Work and Power Song: (3:34)

4. II. Kinetic Energy a. Moving objects does __WORK__, it has __ENERGY__
b. The energy and object has due to its __MOTION__ is called __KINETIC ENERGY__
1. Factors Affecting Kinetic Energy
a. __KINETIC__ energy of an object depends on both its __MASS__ and its __VELOCITY__
b. Kinetic energy __INCREASES__ as mass __INCREASES__
c. Kinetic energy also __INCREASES__ when __VELOCITY__ increases.

5. 2. Calculating Kinetic Energy
a. Kinetic Energy = ½ X __MASS__ X __VELOCITY2 __
b. __VELOCITY__ of an object will have a __GREATER__ effect on its kinetic energy than changing its __MASS__ by the same factor.
Brain Pop- Kinetic Energy (2:01)

6. III. Potential Energy
a. An __OBJECT__ does not have to be moving to have __ENERGY__
b. __STORED__ energy that results from the position or shape of an object is called __POTENTIAL__ energy

7. 1. Gravitational Potential Energy
a. __POTENTIAL__ energy related to an object’s __HEIGHT__ is called __GRAVITATIONAL POTENTIAL ENERGY__
b. Gravitational potential energy = __WEIGHT__ X __HEIGHT__
2. Elastic Potential Energy
a. The __POTENTIAL__ energy associated with object that can be __STRETCHD__ or __COMPRESSED__ is called __ELASTIC POTENTIAL ENERGY__
Brain Pop – Potential Energy (2:06)

8. B. Forms of Energy
I. Mechanical Energy a. The form of energy associated with the __POSITION__ and __MOTION__ of an object is called __MECHANICAL ENERGY__ b. Mechanical Energy = __POTENTIAL ENERGY__ + __KINETIC ENERGY_

9. Other Forms of Energy 1. Thermal Energy
a. The __TOTAL__ potential and __KINETIC__ energy of the particles in an object is called __THERMAL ENERGY__
Energy Song: (3:06)

10. a. The energy of __ELECTRIC CHARGES __ is electrical energy.
3. Chemical Energy
a. __CHEMICAL ENERGY__ is potential energy stored in the __CHEMICAL BONDS__ that hold chemical compounds together.
4. Nuclear Energy
a. __NUCLEAR__ energy is stored in the nucleus of an __ATOM__
5. Electromagnetic Energy
a. __ELECTROMAGNETIC__ energy travels in waves from the __SUN__
Brain Pop – Forms of Energy (1:52)