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PHYSICS 71 > Mechanical Waves > Flashcards

Mechanical Waves Flashcards

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1
Q

What type of wave requires a medium to propagate?

A) Mechanical wave
B) Electromagnetic wave
C) Gravitational wave
D) Nuclear wave

A

A) Mechanical wave

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2
Q

Which of the following waves is NOT an example of a mechanical wave?

A) Sound wave
B) Water wave
C) Light wave
D) Seismic wave

A

C) Light wave

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3
Q

What is the term for the maximum displacement of particles from their equilibrium position in a wave?

A) Wavelength
B) Amplitude
C) Frequency
D) Period

A

B) Amplitude

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4
Q

What is the relationship between the frequency and the period of a wave?

A) Directly proportional
B) Inversely proportional
C) No relationship
D) Depends on the wave speed

A

B) Inversely proportional

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5
Q

What is the speed of a wave that has a frequency of 50 Hz and a wavelength of 10 meters?

A) 500 m/s
B) 5 m/s
C) 50 m/s
D) 100 m/s

A

C) 50 m/s

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6
Q

Which of the following waves requires a medium for propagation?

A) Electromagnetic wave
B) Sound wave
C) Light wave
D) X-ray wave

A

B) Sound wave

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7
Q

What is the phenomenon called when waves combine to form a new wave with a larger amplitude?

A) Diffraction
B) Refraction
C) Interference
D) Reflection

A

C) Interference

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8
Q

Which type of interference occurs when waves combine to produce regions of increased amplitude?

A) Constructive interference
B) Destructive interference
C) Partial interference
D) Total interference

A

A) Constructive interference

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9
Q

What is the term for the time taken for a wave to complete one full cycle?

A) Frequency
B) Period
C) Wavelength
D) Amplitude

A

B) Period

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10
Q

Which of the following statements is true regarding the speed of a wave in a medium?

A) It increases with increasing frequency
B) It decreases with increasing amplitude
C) It depends only on the frequency of the wave
D) It is independent of the properties of the medium

A

C) It depends only on the frequency of the wave

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11
Q

What term describes the distance between two consecutive crests or troughs of a wave?

A) Frequency
B) Period
C) Wavelength
D) Amplitude

A

C) Wavelength

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12
Q

In which medium does sound travel fastest?

A) Air
B) Water
C) Steel
D) Vacuum

A

C) Steel

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13
Q

What happens to the speed of sound in air if the temperature increases?

A) Increases
B) Decreases
C) Remains the same
D) Depends on the pressure

A

A) Increases

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14
Q

Which type of wave exhibits both longitudinal and transverse motion?

A) Electromagnetic wave
B) Seismic wave
C) Water wave
D) Surface wave

A

D) Surface wave

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15
Q

What happens to the wavelength of a wave if its frequency increases?

A) Increases
B) Decreases
C) Remains the same
D) Depends on the medium

A

B) Decreases

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16
Q

What is the term for the bending of waves around obstacles or through openings?

A) Reflection
B) Refraction
C) Diffraction
D) Interference

A

C) Diffraction

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17
Q

Which of the following factors does NOT affect the speed of sound in a medium?

A) Temperature
B) Pressure
C) Density
D) Humidity

A

C) Density

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18
Q

Which of the following factors affects the speed of sound in a medium?

A) Temperature
B) Frequency
C) Wavelength
D) Amplitude

A

A) Temperature

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19
Q

What is the term for the phenomenon when a wave bounces off a surface?

A) Diffraction
B) Refraction
C) Interference
D) Reflection

A

D) Reflection

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20
Q

Which of the following statements about the amplitude of a wave is true?

A) It is the distance between two crests
B) It is the time taken for one complete oscillation
C) It represents the energy carried by the wave
D) It is inversely proportional to frequency

A

C) It represents the energy carried by the wave

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21
Q

What type of wave is a seismic wave?

A) Longitudinal wave
B) Transverse wave
C) Surface wave
D) Both longitudinal and transverse

A

D) Both longitudinal and transverse

22
Q

What happens to the frequency of a wave if its wavelength decreases?

A) Frequency increases
B) Frequency decreases
C) Frequency remains the same
D) Depends on the medium

A

C) Frequency remains the same

23
Q

What phenomenon causes a change in direction of waves as they pass from one medium to another?

A) Diffraction
B) Refraction
C) Interference
D) Reflection

A

B) Refraction

24
Q

In which medium does sound travel faster: air or water?

A) Air
B) Water
C) Depends on the frequency
D) Both travel at the same speed

A

B) Water

25
Q

What is the primary factor that determines the speed of sound in a medium?

A) Temperature
B) Pressure
C) Density
D) Humidity

A

A) Temperature

26
Q

Which type of wave requires a medium for propagation?

A) Electromagnetic wave
B) Sound wave
C) Light wave
D) X-ray wave

A

B) Sound wave

27
Q

What is the term for the phenomenon when two waves meet and their amplitudes combine?

A) Diffraction
B) Refraction
C) Interference
D) Reflection

A

C) Interference

28
Q

What is the speed of a wave that has a frequency of 100 Hz and a wavelength of 2 meters?

A) 50 m/s
B) 200 m/s
C) 500 m/s
D) 20 m/s

A

B) 200 m/s

29
Q

What is the term for the bending of waves around obstacles or through openings?

A) Reflection
B) Refraction
C) Diffraction
D) Interference

A

C) Diffraction

30
Q

What happens to the wavelength of a wave if its frequency increases?

A) Increases
B) Decreases
C) Remains the same
D) Depends on the medium

A

B) Decreases

31
Q

Which of the following factors does NOT affect the speed of sound in a medium?

A) Temperature
B) Pressure
C) Density
D) Humidity

A

C) Density

32
Q

Which of the following factors affects the speed of sound in a medium?

A) Temperature
B) Frequency
C) Wavelength
D) Amplitude

A

A) Temperature

33
Q

What is the term for the phenomenon when a wave bounces off a surface?

A) Diffraction
B) Refraction
C) Interference
D) Reflection

A

D) Reflection

34
Q

Which of the following statements about the amplitude of a wave is true?

A) It is the distance between two crests
B) It is the time taken for one complete oscillation
C) It represents the energy carried by the wave
D) It is inversely proportional to frequency

A

C) It represents the energy carried by the wave

35
Q

What type of wave is a seismic wave?

A) Longitudinal wave
B) Transverse wave
C) Surface wave
D) Both longitudinal and transverse

A

D) Both longitudinal and transverse

36
Q

What happens to the frequency of a wave if its wavelength decreases?

A) Frequency increases
B) Frequency decreases
C) Frequency remains the same
D) Depends on the medium

A

C) Frequency remains the same

37
Q

What phenomenon causes a change in direction of waves as they pass from one medium to another?

A) Diffraction
B) Refraction
C) Interference
D) Reflection

A

B) Refraction

38
Q

In which medium does sound travel faster: air or water?

A) Air
B) Water
C) Depends on the frequency
D) Both travel at the same speed

A

B) Water

39
Q

What is the primary factor that determines the speed of sound in a medium?

A) Temperature
B) Pressure
C) Density
D) Humidity

A

A) Temperature

40
Q

What is the term for the phenomenon when two waves meet and their amplitudes combine?

A) Diffraction
B) Refraction
C) Interference
D) Reflection

A

C) Interference

41
Q

What is the speed of a wave that has a frequency of 100 Hz and a wavelength of 2 meters?

A) 50 m/s
B) 200 m/s
C) 500 m/s
D) 20 m/s

A

B) 200 m/s

42
Q

What is the term for the bending of waves around obstacles or through openings?

A) Reflection
B) Refraction
C) Diffraction
D) Interference

A

C) Diffraction

43
Q

What happens to the wavelength of a wave if its frequency increases?

A) Increases
B) Decreases
C) Remains the same
D) Depends on the medium

A

B) Decreases

44
Q

Which of the following factors does NOT affect the speed of sound in a medium?

A) Temperature
B) Pressure
C) Density
D) Humidity

A

C) Density

45
Q

Which of the following factors affects the speed of sound in a medium?

A) Temperature
B) Frequency
C) Wavelength
D) Amplitude

A

A) Temperature

46
Q

What is the term for the phenomenon when a wave bounces off a surface?

A) Diffraction
B) Refraction
C) Interference
D) Reflection

A

D) Reflection

47
Q

Which of the following statements about the amplitude of a wave is true?

A) It is the distance between two crests
B) It is the time taken for one complete oscillation
C) It represents the energy carried by the wave
D) It is inversely proportional to frequency

A

C) It represents the energy carried by the wave

48
Q

What type of wave is a seismic wave?

A) Longitudinal wave
B) Transverse wave
C) Surface wave
D) Both longitudinal and transverse

A

D) Both longitudinal and transverse

49
Q

What happens to the frequency of a wave if its wavelength decreases?

A) Frequency increases
B) Frequency decreases
C) Frequency remains the same
D) Depends on the medium

A

C) Frequency remains the same

50
Q

What phenomenon causes a change in direction of waves as they pass from one medium to another?

A) Diffraction
B) Refraction
C) Interference
D) Reflection

A

B) Refraction

PHYSICS 71 (4 decks)

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