Name: ________________________ Class: ___________________ Date: __________
ID: A
Unit 7: PS.8 and PS.9 Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. ____
1. A wave bending as it passes a point of land is an example of refraction. _________________________
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2. Electromagnetic waves are classified as longitudinal waves. _________________________
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3. A virtual image is formed where light rays meet at a point. _________________________
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4. Waves that require a medium through which to travel are called electromagnetic waves. _________________________
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5. In transverse waves, the particles of the medium move at right angles to the direction in which the wave is traveling. _________________________
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6. The speed of sound in air decreases with increasing temperature. _________________________
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7. A convex lens is thicker in the center than at its edges. _________________________
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8. Cellular telephones transmit and receive signals using high-frequency gamma rays. _________________________
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Name: ________________________
ID: A
Short Answer Directions: Use the diagram to answer each question.
1. What does the person transfer to the rope by pulling it up and down at point A? 2. What kind of wave is being generated? 3. In what direction does the medium move relative to the direction of the wave? Explain. Directions: Use the diagram below to answer the questions.
4. What determines the amplitude of a wave of the type shown? 5. Name and describe the parts of the wave labeled A and B. 6. What type of mechanical wave is produced by the action of this coiled spring? 7. What is the relatinship between frequency and wavelength? 8. In electromagnetic waves, the magnetic fields are ____________________ to the electric fields.
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Name: ________________________
ID: A
9. In a longitudinal wave moving along a spring, areas where the coils are farthest apart are called ____________________. Directions: Use the diagram to answer each question.
10. Which letter shows the type of wave that can be seen by the human eye? 11. Which letter indicates X-rays? 12. Name the type of wave labeled C.
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Name: ________________________
ID: A
Directions: Use the diagram to answer each question.
13. What type of sound waves does the sonar device produce?
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Name: ________________________
ID: A
Directions: Use the table to answer each question.
14. Explain why there is a difference between the speed of sound in air at 0°C and the speed of sound in air at 20°C. 15. In which medium listed in the table does sound travel fastest? 16. Compare the speed of sound in iron with the speed of sound in lead. Based on their relative speeds, what might you say about the stiffness and density of iron and lead? 17. The part of the electromagnetic spectrum you can see is called ____________________ light. 18. The ____________________ of a sound wave is the distance between a compression or rarefaction and the next compression or rarefaction. Essay 1. Compare and contrast the properties of visible light, ultraviolet rays, and X-rays.
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Name: ________________________
ID: A
2. Describe technological applications of sound waves. Multiple Choice Identify the choice that best completes the statement or answers the question. ____
1. Electromagnetic waves can transfer energy without a(n) a. change in either a magnetic or an electric field. b. medium. c. electric field. d. magnetic field.
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2. Which term refers to how high or low a sound seems to a person? a. intensity c. loudness b. frequency d. pitch
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3. The maximum distance that the particles of a medium move from the rest position is the a. amplitude of the wave. c. speed of the wave. b. wavelength of the wave. d. frequency of the wave.
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4. Mechanical waves are created when a source of energy causes a medium to a. move. c. vibrate. b. compress. d. expand.
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5. The distance between two corresponding parts of a wave is the wave’s a. speed. c. wavelength. b. amplitude. d. frequency.
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6. Why did Chuck Yeager’s team choose a high altitude to try to break the sound barrier? a. The temperature is higher, so the speed of sound is lower. b. The temperature is lower, so the speed of sound is higher. c. The temperature is lower, so the speed of sound is lower. d. The temperature is higher, so the speed of sound is higher.
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7. The interaction between two waves that meet is called a. interference. c. refraction. b. diffraction. d. reflection.
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8. The electromagnetic waves with the highest frequencies are called a. visible light. c. gamma rays. b. X-rays. d. radio waves.
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9. What occurs when vibrations traveling through an object match the object’s natural frequency? a. diffraction c. refraction b. reflection d. resonance
____ 10. Which electromagnetic waves have the longest wavelengths and lowest frequencies? a. radio waves c. infrared waves b. gamma rays d. ultraviolet rays
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Name: ________________________
ID: A
____ 11. Which waves have some electrical properties and some magnetic properties? a. mechanical waves c. transverse waves b. longitudinal waves d. electromagnetic waves ____ 12. What do some bats use to locate food and to navigate? a. infrasound c. echolocation b. dissonance d. acoustics ____ 13. Because the light rays never meet, a concave lens can produce a. only a real image. c. no image. b. both real and virtual images. d. only a virtual image. ____ 14. Doctors are able to make sonograms through the use of a. infrasound. c. ultrasound. b. acoustics. d. sonar. ____ 15. Waves that move the particles of the medium parallel to the direction in which the waves are traveling are called a. combination waves. c. transverse waves. b. surface waves. d. longitudinal waves.
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ID: A
Unit 7: PS.8 and PS.9 Answer Section MODIFIED TRUE/FALSE 1. ANS: F, diffraction PTS: OBJ: STA: BLM: 2. ANS:
0 DIF: L2 REF: o_01_040 Describe how reflection, refraction, and diffraction change a wave's direction. PS.9a | PS.9b | PS.9c TOP: PH_EN_SC_MGS_0000652 comprehension F, transverse
PTS: OBJ: TOP: 3. ANS:
0 DIF: L1 REF: o_03_031 State what an electromagnetic wave consists of. PH_EN_SC_MGS_0000541 BLM: knowledge F, real
PTS: OBJ: STA: BLM: 4. ANS:
0 DIF: L1 REF: o_04_032 Describe the types of images produced by plane, concave, and convex mirrors. PS.1n | PS.9b | PS.9c | PS.9e TOP: PH_EN_SC_MGS_0000550 knowledge F, mechanical
PTS: OBJ: TOP: 5. ANS: REF: STA: BLM: 6. ANS:
0 DIF: L1 REF: o_01_031 Explain what causes mechanical waves. STA: PS.8a | PS.8c | PS.9a PH_EN_SC_MGS_0000525 BLM: knowledge T PTS: 0 DIF: L1 o_01_032 OBJ: List and describe three types of mechanical waves. PS.8a | PS.8c | PS.9a TOP: PH_EN_SC_MGS_0000526 knowledge F, increases
PTS: OBJ: STA: BLM: 7. ANS: REF: OBJ: STA: BLM:
0 DIF: L2 REF: o_02_032 Identify factors that affect the speed of sound. PS.1g | PS.1i | PS.1j | PS.8a | PS.8c | PS.8d TOP: PH_EN_SC_MGS_0000534 comprehension T PTS: 0 DIF: L1 o_04_034 Identify what determines the types of images formed by convex and concave lenses. PS.1n | PS.9b | PS.9c TOP: PH_EN_SC_MGS_0000552 knowledge
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STA: PS.9b
ID: A 8. ANS: F, microwaves PTS: 0 DIF: L1 REF: o_03_037 OBJ: Explain how radio waves transmit information. TOP: PH_EN_SC_MGS_0000544 BLM: knowledge
STA: PS.1c | PS.9a | PS.9d
SHORT ANSWER 1. ANS: energy PTS: 0 DIF: L2 REF: o_01_061 OBJ: Explain what causes mechanical waves. TOP: PH_EN_SC_MGS_0000525 BLM: application 2. ANS: a transverse wave
STA: PS.8a | PS.8c | PS.9a
PTS: 0 DIF: L2 REF: o_01_064 OBJ: List and describe three types of mechanical waves. STA: PS.8a | PS.8c | PS.9a TOP: PH_EN_SC_MGS_0000526 BLM: application 3. ANS: The medium moves perpendicular, or at right angles, to the wave; the rope moves up and down vertically and the wave moves horizontally. PTS: 0 DIF: L2 REF: o_01_063 OBJ: List and describe three types of mechanical waves. STA: PS.8a | PS.8c | PS.9a TOP: PH_EN_SC_MGS_0000526 BLM: analysis 4. ANS: how compressed or rarefied the medium becomes; the denser the compressions, the greater the amplitude of the wave PTS: 0 DIF: L2 REF: 55635 OBJ: Describe the basic properties of waves. STA: PS.1d | PS.8a | PS.8c | PS.9a TOP: PH_EN_SC_MGS_0000527 BLM: analysis 5. ANS: A is a compression; B is a rarefaction. At a compression, the coils are close together. At a rarefaction, the coils are spread apart. PTS: 0 DIF: L2 REF: 55634 OBJ: Describe the basic properties of waves. TOP: PH_EN_SC_MGS_0000527 BLM: analysis 6. ANS: a longitudinal wave PTS: 0 DIF: L2 REF: 55633 OBJ: List and describe three types of mechanical waves. TOP: PH_EN_SC_MGS_0000526 BLM: application
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STA: PS.1d | PS.8a | PS.8c | PS.9a
STA: PS.8a | PS.8c | PS.9a
ID: A 7. ANS: As wavelength increases, frequency decreases and vice-versa. PTS: 1 8. ANS: perpendicular PTS: 0 DIF: L2 REF: o_03_042 OBJ: State what an electromagnetic wave consists of. STA: PS.9b TOP: PH_EN_SC_MGS_0000541 BLM: comprehension 9. ANS: rarefactions PTS: 0 DIF: L2 REF: o_01_042 OBJ: List and describe three types of mechanical waves. STA: PS.8a | PS.8c | PS.9a TOP: PH_EN_SC_MGS_0000526 BLM: comprehension 10. ANS: B PTS: OBJ: STA: BLM: 11. ANS: D
0 DIF: L2 REF: o_03_064 Describe the waves that make up the electromagnetic spectrum. PS.1c | PS.1e | PS.9a | PS.9d | PS.9e TOP: PH_EN_SC_MGS_0000542 application
PTS: 0 DIF: L2 REF: o_03_066 OBJ: Explain how electromagnetic waves are alike and how they are different. STA: PS.9a | PS.9d TOP: PH_EN_SC_MGS_0000543 BLM: application 12. ANS: ultraviolet rays PTS: 0 DIF: L2 REF: o_03_062 OBJ: Explain how electromagnetic waves are alike and how they are different. STA: PS.9a | PS.9d TOP: PH_EN_SC_MGS_0000543 BLM: application 13. ANS: ultrasound PTS: 0 DIF: L2 REF: o_02_069 OBJ: Describe how animals and people use sound. STA: PS.1m | PS.8a | PS.8c | PS.8d TOP: PH_EN_SC_MGS_0000540 BLM: comprehension
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ID: A 14. ANS: At the lower temperature, the particles of the air tend to move more slowly and respond less readily to the energy of the sound wave, making the speed of sound in air lower at 0°C than at 20°C. PTS: OBJ: STA: BLM: 15. ANS: steel
0 DIF: L2 REF: o_02_064 Identify factors that affect the speed of sound. PS.1g | PS.1i | PS.1j | PS.8a | PS.8c | PS.8d analysis
TOP: PH_EN_SC_MGS_0000534
PTS: 0 DIF: L2 REF: o_02_062 OBJ: Identify factors that affect the speed of sound. STA: PS.1g | PS.1i | PS.1j | PS.8a | PS.8c | PS.8d TOP: PH_EN_SC_MGS_0000534 BLM: analysis 16. ANS: The speed of sound is more than four times faster in iron than in lead. Because sound travels more slowly in denser mediums and in mediums that are less stiff, lead is most likely denser and less stiff than iron. PTS: 0 DIF: L2 REF: o_02_063 OBJ: Identify factors that affect the speed of sound. STA: PS.1g | PS.1i | PS.1j | PS.8a | PS.8c | PS.8d BLM: analysis 17. ANS: visible
TOP: PH_EN_SC_MGS_0000534
PTS: 0 DIF: L2 REF: o_03_048 OBJ: Explain how electromagnetic waves are alike and how they are different. STA: PS.9a | PS.9d TOP: PH_EN_SC_MGS_0000543 BLM: comprehension 18. ANS: wavelength PTS: 0 DIF: L2 STA: PS.8a | PS.8c | PS.8d BLM: application
REF: o_02_041 OBJ: Define sound. TOP: PH_EN_SC_MGS_0000533
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ID: A ESSAY 1. ANS: Visible light, ultraviolet rays, and X-rays are all parts of the electromagnetic spectrum, and travel at the same speed. Humans can see visible light, but not ultraviolet rays or X-rays. Ultraviolet rays have shorter wavelengths, higher frequencies, and higher energy than visible light. X-rays have shorter wavelengths, higher frequencies, and higher energy than ultraviolet rays. PTS: 0 DIF: L2 REF: o_03_075 OBJ: Explain how electromagnetic waves are alike and how they are different. STA: PS.9a | PS.9d TOP: PH_EN_SC_MGS_0000543 BLM: analysis 2. ANS: Ultrasonic technology, including sonar and medical diagnosis. PTS: 1 MULTIPLE CHOICE 1. ANS: OBJ: TOP: 2. ANS: OBJ: TOP: 3. ANS: OBJ: TOP: 4. ANS: OBJ: TOP: 5. ANS: OBJ: TOP: 6. ANS: OBJ: STA: BLM: 7. ANS: OBJ: TOP: 8. ANS: OBJ: STA: BLM: 9. ANS: OBJ: TOP:
B PTS: 0 DIF: L2 REF: o_03_002 State what an electromagnetic wave consists of. STA: PS.9b PH_EN_SC_MGS_0000541 BLM: comprehension D PTS: 0 DIF: L1 REF: o_02_008 State what the pitch of a sound depends on. STA: PS.1m | PS.8a PH_EN_SC_MGS_0000535 BLM: knowledge A PTS: 0 DIF: L1 REF: o_01_005 Describe the basic properties of waves. STA: PS.1d | PS.8a | PS.8c | PS.9a PH_EN_SC_MGS_0000527 BLM: knowledge C PTS: 0 DIF: L1 REF: o_01_002 Explain what causes mechanical waves. STA: PS.8a | PS.8c | PS.9a PH_EN_SC_MGS_0000525 BLM: knowledge C PTS: 0 DIF: L1 REF: o_01_006 Describe the basic properties of waves. STA: PS.1d | PS.8a | PS.8c | PS.9a PH_EN_SC_MGS_0000527 BLM: knowledge C PTS: 0 DIF: L2 REF: o_02_005 Identify factors that affect the speed of sound. PS.1g | PS.1i | PS.1j | PS.8a | PS.8c | PS.8d TOP: PH_EN_SC_MGS_0000534 comprehension A PTS: 0 DIF: L1 REF: o_01_010 State the different types of interference. STA: PS.1m | PS.9a PH_EN_SC_MGS_0000531 BLM: knowledge C PTS: 0 DIF: L1 REF: o_03_007 Describe the waves that make up the electromagnetic spectrum. PS.1c | PS.1e | PS.9a | PS.9d | PS.9e TOP: PH_EN_SC_MGS_0000542 knowledge D PTS: 0 DIF: L2 REF: o_01_013 Explain how standing waves form. STA: PS.1m | PS.8b | PS.9a PH_EN_SC_MGS_0000532 BLM: comprehension 5
ID: A 10. ANS: OBJ: STA: BLM: 11. ANS: OBJ: TOP: 12. ANS: OBJ: TOP: 13. ANS: OBJ: STA: BLM: 14. ANS: OBJ: TOP: 15. ANS: OBJ: TOP:
A PTS: 0 DIF: L1 REF: o_03_020 Describe the waves that make up the electromagnetic spectrum. PS.1c | PS.1e | PS.9a | PS.9d | PS.9e TOP: PH_EN_SC_MGS_0000542 knowledge D PTS: 0 DIF: L2 REF: o_03_001 State what an electromagnetic wave consists of. STA: PS.9b PH_EN_SC_MGS_0000541 BLM: comprehension C PTS: 0 DIF: L2 REF: o_02_021 Describe how animals and people use sound. STA: PS.1m | PS.8a | PS.8c | PS.8d PH_EN_SC_MGS_0000540 BLM: comprehension D PTS: 0 DIF: L1 REF: o_04_008 Identify what determines the types of images formed by convex and concave lenses. PS.1n | PS.9b | PS.9c TOP: PH_EN_SC_MGS_0000552 knowledge C PTS: 0 DIF: L2 REF: o_02_023 Describe how animals and people use sound. STA: PS.1m | PS.8a | PS.8c | PS.8d PH_EN_SC_MGS_0000540 BLM: comprehension D PTS: 0 DIF: L1 REF: o_01_004 List and describe three types of mechanical waves. STA: PS.8a | PS.8c | PS.9a PH_EN_SC_MGS_0000526 BLM: knowledge
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