Energy Unit Review Unit B - Chapters 1 & 2 Unit C – Chapters 1 - 4.

Energy Unit Review

Unit B - Chapters 1 & 2

Unit C – Chapters 1 - 4

Chapter 1B - Energy

1. The ability to cause change is called ____________. 2. How is kinetic energy increased? 3. The energy stored in food is a form of

___________________ energy. 4. Which type of energy is stored in the nucleus of

atoms?

Chapter 1B - Energy

1. The ability to cause change is called energy. 2. How is kinetic energy increased? 3. The energy stored in food is a form of


atoms?

Chapter 1B - Energy

1. The ability to cause change is called energy. 2. How is kinetic energy increased? by increasing mass

or speed 3. The energy stored in food is a form of


atoms?

Chapter 1B - Energy


or speed 3. The energy stored in food is a form of potential

energy. 4. Which type of energy is stored in the nucleus of

atoms?

Chapter 1B - Energy


or speed 3. The energy stored in food is a form of potential

energy. 4. Which type of energy is stored in the nucleus of

atoms? Nuclear energy

Chapter 1B - Energy

5. X-rays are a form of ____________ energy.

6. Sunlight is changed into electric energy by what device?

7. When a rock falls from a cliff potential energy changes into _____________ energy.

Chapter 1B - Energy

5. X-rays are a form of electromagnetic energy.

6. Sunlight is changed into electric energy by what device?


Chapter 1B - Energy


6. Sunlight is changed into electric energy by what device? Solar cell


Chapter 1B - Energy


6. Sunlight is changed into electric energy by what device? Solar cell

7. When a rock falls from a cliff potential energy changes into kinetic energy.

Chapter 2B – Temperature & Heat

8. Temperature is usually measured in degrees with what device?

9. Why are steel joints often used to separate sections of concrete bridges.

10. According to the kinetic theory of matter, how do particles in a gas move?


8. Temperature is usually measured in degrees with what device? thermometer

9. Why are steel joints often used to separate sections of concrete bridges.




9. Why are steel joints often used to separate sections of concrete bridges. Thermal expansion causes the concrete to expand and crack




9. Why are steel joints often used to separate sections of concrete bridges. Thermal expansion causes the concrete to expand and crack

10. According to the kinetic theory of matter, how do particles in a gas move? More freely than a liquid


11. Heat is a flow of energy caused by ______________________________.

12. The amount of energy required to raise the temperature of 1 gram of a substance by 1°C is called _______________.

13. A metal spoon is used to stir a pot of hot soup. The spoon is warmed by which type of heat transfer?


11. Heat is a flow of energy caused by temperature differences.

12. The amount of energy required to raise the temperature of 1 gram of a substance by 1°C is called _______________.




12. The amount of energy required to raise the temperature of 1 gram of a substance by 1°C is called specific heat.




12. The amount of energy required to raise the temperature of 1 gram of a substance by 1°C is called specific heat.


conduction


14. Suppose that you are at the beach. Energy from the Sun reaches you mainly through which type of heat transfer?

15. Many people wear hats in the winter. Are hats insulators or conductors of heat?



radiation




radiation


insulators

Chapter 1C – Waves

16. How do forces cause waves?

17. Give at least two examples of a longitudinal wave.

18. The number of crests that reach the shore in a given time is called ____________.



by creating disturbances







sound waves and a spring






sound waves and a spring

18. The number of crests that reach the shore in a given time is called frequency.


19. What do you measure to find wavelength?

20. An echo is an example of what type of wave movement?

21. Describe refraction.



distance from trough to trough or crest to crest





distance from trough to trough or crest to crest


reflection



19. What do you measure to find wavelength? distance from trough to trough or crest to crest


reflection21. Describe refraction.

a wave bends as it passes into a new medium


22. Give an example of diffraction.

23. How does a mechanical wave transfer energy?



a wave spreads as it passes a barrier




a wave spreads as it passes a barrier


By moving a medium (material)

Chapter 2C – Sound

24. What causes sound waves?

25. How is the sound of your voice produced?

26. To make the pitch of a sound wave lower, frequency has to _________________.


24. What causes sound waves? vibrations






when your vocal chords vibrate





when your vocal chords vibrate

26. To make the pitch of a sound wave lower, frequency has to decrease.


27. When an ambulance passes, how does the sound of the siren change?

28. The intensity of a sound is determined by what measurement of the wave?

29. If the frequency of a sound wave is increases, the sound's ______________ is also increased.


27. When an ambulance passes, how does the sound of the siren change? The pitch decreases

28. The intensity of a sound is determined by what measurement of the wave?




28. The intensity of a sound is determined by what measurement of the wave? amplitude




28. The intensity of a sound is determined by what measurement of the wave? amplitude

29. If the frequency of a sound wave is increases, the sound's pitch is also increased.


30. By turning up the volume on a stereo, you are increasing the ______________ of the sound wave.

31. What type of sounds can damage hearing?

32. How is ultrasound used in the medical field?


30. By turning up the volume on a stereo, you are increasing the intensity of the sound wave.






high-intensity sounds





high-intensity sounds


to examine internal organs

Chapter 3C – EM Waves

33. Where do most of the visible electromagnetic waves on Earth come from?

34. Unlike mechanical waves, electromagnetic waves can transfer energy through _______________.

35. Which EM waves have the highest frequencies?


33. Where do most of the visible electromagnetic waves on Earth come from? The Sun

34. Unlike mechanical waves, electromagnetic waves can transfer energy through _______________.




34. Unlike mechanical waves, electromagnetic waves can transfer energy through empty space (a vacuum).




34. Unlike mechanical waves, electromagnetic waves can transfer energy through empty space (a vacuum).


gamma rays


36. A fire produces light by ______________________.

37. Sunblock and some kinds of sunglasses are designed to protect against which type of EM waves?

38. A regular light bulb creates light by heating a filament until it glows. This way of producing light is called ___________________.


36. A fire produces light by incandescence.






ultraviolet light





ultraviolet light

38. A regular light bulb creates light by heating a filament until it glows. This way of producing light is called incandescence.


39. How do bioluminescent animals produce light?

40. The light that hits a clear window will mostly be ____________________ through the window.



through chemical reactions

40. The light that hits a clear window will mostly be ____________________ through the window.



through chemical reactions

40. The light that hits a clear window will mostly be transmitted through the window.


41. What do polarized sunglasses do?

42. The apparent color of an object depends on what two factors?



let through light waves that vibrate in only one direction




let through light waves that vibrate in only one direction


the wavelengths of light it reflects, and the light shining on it

Chapter 4C – Light & Optics

43. What is the study of light and tools that use light?

44. In what direction are parallel light rays that hit a concave mirror reflected?

45. A ray of sunlight moves from the air into the denser medium of a pond. How will the light ray's speed change?


43. What is the study of light and tools that use light? optics

44. In what direction are parallel light rays that hit a concave mirror reflected?

45. A ray of sunlight moves from the air into the denser

medium of a pond. How will the light ray's speed change?



44. In what direction are parallel light rays that hit a concave mirror reflected? to a focal point


medium of a pond. How will the light ray's speed change?



44. In what direction are parallel light rays that hit a concave mirror reflected? to a focal point


medium of a pond. How will the light ray's speed change? It will slow down


46. Why can a laser beam travel great distances without spreading?

47. What does the law of reflection state?

48. Where do images focus in the eye?



the waves are parallel and very concentrated







The angle of incidence equals the angle of reflection






The angle of incidence equals the angle of reflection

48. Where do images focus in the eye? retina


49. If a mirror reflects light rays and brings them together at a focal point, then the mirror must be _______________.

50. How does a refracting telescope enlarge images?


49. If a mirror reflects light rays and brings them together at a focal point, then the mirror must be concave.



49. If a mirror reflects light rays and brings them together at a focal point, then the mirror must be concave.

`


it uses a combination of convex lenses

Energy Unit Review Unit B - Chapters 1 & 2 Unit C – Chapters 1 - 4.

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Transcript of Energy Unit Review Unit B - Chapters 1 & 2 Unit C – Chapters 1 - 4.