Properties Of Waves MCQ Trivia!

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Questions: 10 | Attempts: 1,831 | Updated: Mar 17, 2024

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Properties of Waves MCQ Trivia! The basic properties of a wave are frequency, amplitude, wavelength, and speed, and also, there are different types of them. Do you know what the other properties of wave stand for? What is the wavelength? This quiz will help you understand how waves are formed and how to determine how far they might move. Do give it a shot and see how well you will do. All the best!

Questions and Answers

1.

The number of waves that pass by in a second is known as the wave's
- A.
  
  Wavelength
- B.
  
  Frequency
- C.
  
  Speed
- D.
  
  Amplitude
Correct Answer
B. Frequency

Explanation
The correct answer is frequency. Frequency refers to the number of waves that pass by in a second. It is a measure of how many complete cycles of a wave occur in a given time period. Wavelength, on the other hand, refers to the distance between two consecutive points on a wave, speed is the rate at which the wave travels, and amplitude is the maximum displacement of a wave from its equilibrium position.

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12
0
2.

The power of a wave comes from the wave's
- A.
  
  Wavelength
- B.
  
  Frequency
- C.
  
  Speed
- D.
  
  Amplitude
Correct Answer
D. Amplitude

Explanation
The power of a wave comes from its amplitude. Amplitude refers to the maximum displacement of particles in a medium from their equilibrium position when a wave passes through. The greater the amplitude, the more energy the wave carries. This means that waves with larger amplitudes have more power. Wavelength, frequency, and speed are important properties of a wave, but they do not directly determine its power.

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4
2
3.

The distance between two identical points on a adjacent waves is the wave's
- A.
  
  Wavelength
- B.
  
  Frequency
- C.
  
  Speed
- D.
  
  Amplitude
Correct Answer
A. Wavelength

Explanation
The distance between two identical points on adjacent waves is known as wavelength. This refers to the length of one complete wave cycle, from crest to crest or trough to trough. It is a measure of the spatial extent of the wave and is usually represented by the symbol λ (lambda). Wavelength is inversely related to frequency, meaning that as wavelength increases, frequency decreases, and vice versa. The speed and amplitude of the wave are not related to the distance between identical points on adjacent waves.

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5
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4.

Factors that affect a wave's speed are:
- A.
  
  Wavelength & energy
- B.
  
  Frequency & amplitude
- C.
  
  Wavelength & frequency
- D.
  
  Amplitude & tension
Correct Answer
C. Wavelength & frequency

Explanation
The speed of a wave is determined by the wavelength and frequency. The wavelength is the distance between two consecutive points on a wave, while the frequency is the number of complete wave cycles that pass a given point in a second. These two factors are inversely related, meaning that as the wavelength decreases, the frequency increases, and vice versa. Therefore, a shorter wavelength and a higher frequency will result in a faster wave speed.

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4
0
5.

The material a wave travels through is called the
- A.
  
  Medium
- B.
  
  Amplitude
- C.
  
  Energy field
- D.
  
  Antinode
Correct Answer
A. Medium

Explanation
The material a wave travels through is called the medium. This is because waves require a physical substance or material to propagate through, such as air, water, or solids. The medium acts as a medium for the transfer of energy from one point to another. Without a medium, the wave cannot travel or propagate. The amplitude refers to the maximum displacement of particles in a wave, energy field refers to the region in which energy is present, and antinode refers to a point of maximum amplitude in a standing wave.

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4
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6.

If the speed of a wave remains constant, what will frequency be if the wavelength is shortened by half?
- A.
  
  Increase
- B.
  
  Double
- C.
  
  Halve
- D.
  
  Decrease
Correct Answer
B. Double

Explanation
When the wavelength is halved, the frequency of the wave will double because frequency and wavelength are inversely proportional in a wave with a constant speed. Therefore, the correct answer is "double."

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8
0
7.

By counting the number of crests that pass by a given point in a certain amount of time, a person can calculate the wave's
- A.
  
  Tension
- B.
  
  Speed
- C.
  
  Wavelength
- D.
  
  Frequency
Correct Answer
D. Frequency

Explanation
By counting the number of crests that pass by a given point in a certain amount of time, a person can calculate the wave's frequency. Frequency refers to the number of complete wave cycles that occur in one second. By counting the crests, which represent one complete cycle, and measuring the time it takes for them to pass, one can determine how many cycles occur in a given time period, thus calculating the frequency of the wave.

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5
0
8.

The wavelength is represented by which letter?
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
Correct Answer
A. A

Explanation
The correct answer is A. In physics, wavelength is represented by the Greek letter lambda (λ).

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3
0
9.

The wave trough is represented by which letter?
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
Correct Answer
D. D

Explanation
The wave trough is represented by the letter D. The trough is the lowest point of a wave, where the amplitude is at its minimum. In this question, the letters A, B, C, and D are given as options, and the correct answer is D, indicating that D represents the wave trough.

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1
0
10.

If the following wave has a frequency of 30 Hz, what is its speed?
- A.
  
  20 m/s
- B.
  
  30 m/s
- C.
  
  45 m/s
- D.
  
  50 m/s
Correct Answer
C. 45 m/s