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Longitudinal Waves Flashcards

1
Q

What is a longitudinal wave?

A

A wave in which the particle displacement is parallel to the direction of wave propagation.

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2
Q

True or False: In longitudinal waves, compressions are areas of high pressure.

A

True

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3
Q

Fill in the blank: Longitudinal waves are characterized by ______ and rarefactions.

A

compressions

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4
Q

Which of the following is an example of a longitudinal wave? A) Light wave B) Sound wave C) Water wave

A

B) Sound wave

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5
Q

What are the two main parts of a longitudinal wave?

A

Compressions and rarefactions.

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6
Q

True or False: Longitudinal waves can travel through solids, liquids, and gases.

A

True

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7
Q

What is the key difference between longitudinal waves and transverse waves?

A

In longitudinal waves, displacement is parallel to the direction of wave travel, while in transverse waves, displacement is perpendicular.

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8
Q

Fill in the blank: The speed of sound in air at room temperature is approximately ______ meters per second.

A

343

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9
Q

Multiple choice: Which property of a longitudinal wave is related to the loudness of sound? A) Frequency B) Wavelength C) Amplitude

A

C) Amplitude

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10
Q

What is meant by the term ‘compression’ in a longitudinal wave?

A

A region where particles are closer together, resulting in increased pressure.

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11
Q

In terms of wave behavior, what does ‘rarefaction’ refer to?

A

A region where particles are spread apart, resulting in decreased pressure.

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12
Q

True or False: Longitudinal waves can be polarized.

A

False

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13
Q

What is the relationship between frequency and wavelength in longitudinal waves?

A

They are inversely proportional; as frequency increases, wavelength decreases.

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14
Q

Fill in the blank: The unit of frequency is ______.

A

Hertz

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15
Q

What is the formula for wave speed?

A

Wave speed = frequency × wavelength.

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16
Q

Multiple choice: Which medium does sound travel fastest in? A) Air B) Water C) Steel

A

C) Steel

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17
Q

What is a practical application of longitudinal waves?

A

Ultrasound imaging in medicine.

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18
Q

True or False: Longitudinal waves can interfere with each other.

A

True

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19
Q

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

A

Interference

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20
Q

Fill in the blank: The frequency of a sound wave determines its ______.

A

pitch

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21
Q

What type of wave is produced by a vibrating tuning fork?

A

Longitudinal wave

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22
Q

True or False: Longitudinal waves can be represented graphically with a sine wave.

A

False

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23
Q

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

A

The wavelength is halved.

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24
Q

Multiple choice: Which of the following does NOT affect the speed of sound? A) Temperature B) Humidity C) Color

A

C) Color

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25
Q

Fill in the blank: The range of human hearing is typically from ______ to ______ Hertz.

A

20, 20000

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26
Q

What is the term for the lowest frequency of a sound wave that can be heard?

A

Fundamental frequency

27
Q

True or False: Sound waves are an example of mechanical waves.

28
Q

What is the effect called when sound waves reflect off a surface?

29
Q

Fill in the blank: Longitudinal waves are also known as ______ waves.

A

compression

30
Q

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

A

The density and elasticity of the medium.

31
Q

Multiple choice: What happens to the sound intensity as you move further away from the source? A) Increases B) Decreases C) Stays the same

A

B) Decreases

32
Q

What is a common use of longitudinal waves in technology?

A

Sonar for underwater navigation.

33
Q

What is a longitudinal wave?

A

A wave in which the particle displacement is parallel to the direction of wave propagation.

34
Q

True or False: In longitudinal waves, compressions are areas of high pressure.

35
Q

Fill in the blank: Longitudinal waves are characterized by ______ and rarefactions.

A

compressions

36
Q

Which of the following is an example of a longitudinal wave? A) Light wave B) Sound wave C) Water wave

A

B) Sound wave

37
Q

What are the two main parts of a longitudinal wave?

A

Compressions and rarefactions.

38
Q

True or False: Longitudinal waves can travel through solids, liquids, and gases.

39
Q

What is the key difference between longitudinal waves and transverse waves?

A

In longitudinal waves, displacement is parallel to the direction of wave travel, while in transverse waves, displacement is perpendicular.

40
Q

Fill in the blank: The speed of sound in air at room temperature is approximately ______ meters per second.

41
Q

Multiple choice: Which property of a longitudinal wave is related to the loudness of sound? A) Frequency B) Wavelength C) Amplitude

A

C) Amplitude

42
Q

What is meant by the term ‘compression’ in a longitudinal wave?

A

A region where particles are closer together, resulting in increased pressure.

43
Q

In terms of wave behavior, what does ‘rarefaction’ refer to?

A

A region where particles are spread apart, resulting in decreased pressure.

44
Q

True or False: Longitudinal waves can be polarized.

45
Q

What is the relationship between frequency and wavelength in longitudinal waves?

A

They are inversely proportional; as frequency increases, wavelength decreases.

46
Q

Fill in the blank: The unit of frequency is ______.

47
Q

What is the formula for wave speed?

A

Wave speed = frequency × wavelength.

48
Q

Multiple choice: Which medium does sound travel fastest in? A) Air B) Water C) Steel

49
Q

What is a practical application of longitudinal waves?

A

Ultrasound imaging in medicine.

50
Q

True or False: Longitudinal waves can interfere with each other.

51
Q

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

A

Interference

52
Q

Fill in the blank: The frequency of a sound wave determines its ______.

53
Q

What type of wave is produced by a vibrating tuning fork?

A

Longitudinal wave

54
Q

True or False: Longitudinal waves can be represented graphically with a sine wave.

55
Q

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

A

The wavelength is halved.

56
Q

Multiple choice: Which of the following does NOT affect the speed of sound? A) Temperature B) Humidity C) Color

57
Q

Fill in the blank: The range of human hearing is typically from ______ to ______ Hertz.

58
Q

What is the term for the lowest frequency of a sound wave that can be heard?

A

Fundamental frequency

59
Q

True or False: Sound waves are an example of mechanical waves.

60
Q

What is the effect called when sound waves reflect off a surface?

61
Q

Fill in the blank: Longitudinal waves are also known as ______ waves.

A

compression

62
Q

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

A

The density and elasticity of the medium.

63
Q

Multiple choice: What happens to the sound intensity as you move further away from the source? A) Increases B) Decreases C) Stays the same

A

B) Decreases

64
Q

What is a common use of longitudinal waves in technology?

A

Sonar for underwater navigation.

Physics (Longitudinal Waves) (2 decks)

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