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Energy Unit Review #1
Answer in complete sentences.
1. What is potential energy?
2. What kinetic energy?
3. What is energy?
4. What is gravitational potential energy?
5. What is elastic potential energy?
6. What is chemical energy?
7. Give an example of mechanical energy?
8. Give an example of sound energy?
9. Give an example of chemical energy?
10. Give an example of nuclear energy?
11. Give an example of electromagnetic energy?
12. What is mechanical energy?
13. What is sound energy?
14. What is thermal energy and give an example?
15. What does the Law of Conservation of Energy state?
16. Where did all energy in our solar system originated from?
17. Describe how heat is transferred?
18. What is temperature?
a. The flow of energy due to temperature differences
b. The flow of energy from colder to warmer objects
c. Units that temperature is measured in
d. A measure of the average amount of kinetic energy of all particles in an object
19. What is a joule? What does it measure?
20. What is a device used to measure temperature?
21. What is conduction?
22. What is convection?
23. What is radiation?
24. What happens at the zero point in the Celsius scale? (When it is zero degrees celcius)
25. Which form of heat energy does the Sun travel to Earth?
26. Give an example of an insulator versus a conductor?
27. How can an insulator keep a home cool?
28. What needs to occur for Conduction to transfer the energy of a warmer object to a cooler object?
29. All forms of energy are a combination of?
30. When energy is converted from one form to another what is usually produced?
a. Chemical energy
b. gravity
c. heat
d. Potential energy
31. Which of the following is a conversion from chemical energy to mechanical energy?
a. A dark light bulb starting to glow
b. Food being heated in an oven
c. A ball rolling down a hill
d. A person lifting weights
32. Describe all the different ways an energy-efficient electric fan converts its electrical energy?
33. Describe the energy transfer that occurs when wind is used to generate electricity?
34. A skier on a hill has potential energy due to?
35. Describe how the direction in which a transverse wave travels works?
36. Give an example of a longitudinal wave and how it works?
37. What happens to sound energy as you increase the amplitude of its wave?
38. What happens to light energy as you increase the amplitude of its wave?
39. What happens to sound energy as you increase/decrease its frequency of its wave?
40. What happens to light energy as you increase/decrease the frequency of its wave?
41. Describe as best you can what defines a wave medium?
42. The frequency of a sound wave determines its?
a. pitch
b. loudness
c. amplitude
d. intensity
43. Calculate the Gravitational Potential Energy (GPE) when the mass of a ball is 10g, the acceleration is
9.8 m/s/s, and the position(height) of the ball is 10m high.
44. Give three examples of an electromagnetic wave?
45. What are the two variables that affect the potential energy of an item?
46. Draw a wave and label its crest, trough, amplitude, and wavelength.
47. Describe what fission and fusion are, and explain how they differ.
48. What are the three types of matter?
49. What happens to the movement of particles as the temperature increases/decreases?
50. Draw the energy transfer diagram which shows the pendulum converting potential to kinetic energy.