2. Lesson 1 Reading Guide - Vocab energy potential energy chemical energy nuclear energy kinetic energy electric energy Forms of Energy mechanical energymechanical energy thermal energy wave sound energy radiant energy

3. Lesson 1-1 Forms of Energy A.Energy 1.Energy influences everything in your life. 2.Energy is the ability to cause change. Energy

4. Lesson 1-2 B.Potential Energy 1.Potential energy is stored energy due to the interaction between objects and particles. 2.Objects with potential energy have the possibility to cause change.. Potential Energy

5. Lesson 1-2 3.Any object has gravitational potential energy if it has mass and height above Earth’s surface.

6. Lesson 1-2 4.Chemical energy is energy that is stored in and released in the bonds between atoms. Your body breaks chemical bonds in foods and coverts the released energy into other forms of energy that your body can use. Potential Energy (cont.)

7. Lesson 1-2 5.Nuclear energy is the energy stored in and released from the nucleus of an atom. a.The energy released from the Sun comes from nuclear fusion. Potential Energy (cont.)

8. b.During nuclear fusion, nuclei of atoms join together and release large amounts of energy. c.During nuclear fission, the nucleus of an atom breaks apart, and energy is released. d.Energy used in nuclear power plants to make electricity comes from nuclear fission.

9. Lesson 1-3 1.Kinetic Energy is energy due to motion. 2.The kinetic energy of a moving object is related to the mass and the speed of the object. a.An object must have mass and speed to have kinetic energy. b. If two objects have the same mass, the object that moves with greater speed has greater kinetic energy. Kinetic Energy

10. 3.Electric energy is the energy in an electric current.

11. Lesson 1-3 Kinetic Energy (cont.) How do potential energy and kinetic energy differ?

12. Lesson 1-4 D.Combined Kinetic Energy and Potential Energy 1.A(n) system is a collection of interacting objects, parts, or ideas that act together as a(n) whole. 2.In science, the environment is anything that is not part of the system. 3.The sum of the potential energy and the kinetic energy in a system is mechanical energy. Combined Kinetic Energy and Potential Energy

13. Lesson 1-4 4.Thermal energy is the sum of the kinetic energy and the potential energy of the particles that make up an object. Combined Kinetic Energy and Potential Energy (cont.)

14. Lesson 1-4 Combined Kinetic Energy and Potential Energy (cont.) Compare mechanical energy and thermal energy.

15. Lesson 1-4 E.Energy Carried by Waves 1.A(n) wave is a disturbance that transfers energy from one place to another without transferring matter. 2.Sound energy is energy carried by sound waves, which are waves that move through matter. Energy Carried by Waves

16. Lesson 1-4 3. Electromagnetic waves are electric and magnetic waves that move perpendicularly to one another.

17. a.The energy carried by electromagnetic waves is radiant energy. b.Electromagnetic waves travel through matter and also through spaces with little or no matter. c.Forms of electromagnetic waves include visible light, ultraviolet waves, X-rays, gamma rays, and infrared rays.

18. Lesson 1-4 Visible light is one form of radiant energy.

19. Lesson 1-4 Energy Carried by Waves (cont.) What two forms of energy are carried by waves?

20. Lesson 1 - VS Objects can have potential energy (stored energy) and kinetic energy (energy due to movement). Mechanical energy is due to large-scale motions and interactions in a system. Thermal energy is due to atomic-scale motions and interactions in particles.

21. Lesson 1 - VS Two kinds of energy carried by waves are sound energy and radiant energy.

22. Lesson 1 – LR1 A.chemical energy B.kinetic energy C.mechanical energy D.nuclear energy Which term describes energy stored in and released from the bonds between atoms?

23. Lesson 1 – LR2 A.wave B.wavelength C.potential energy D.thermal energy Which refers to a disturbance that transfers energy from one place to another without transferring matter?

24. Lesson 1 – LR3 A.chemical energy B.nuclear energy C.potential energy D.radiant energy What type of energy provides the warmth from the Sun?