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Vibration MDCAT MCQs with Answers

Vibration MDCAT MCQs

Welcome to the Vibration MDCAT MCQs with Answers. In this post, we have shared Vibration Multiple Choice Questions and Answers for PMC MDCAT 2024. Each question in MDCAT Physics offers a chance to enhance your knowledge regarding Vibration MCQs in this MDCAT Online Test.

Vibration MDCAT MCQs Test Preparations

What is the term for the maximum displacement of a vibrating object from its equilibrium position?
A) Amplitude
B) Frequency
C) Wavelength
D) Period

Answer
A) Amplitude

The time taken for one complete cycle of a vibrating system is called the:
A) Frequency
B) Amplitude
C) Period
D) Wavelength

Answer
C) Period

The number of oscillations per second is known as:
A) Frequency
B) Amplitude
C) Period
D) Speed

Answer
A) Frequency

Which quantity is inversely proportional to the period of a vibrating object?
A) Frequency
B) Amplitude
C) Speed
D) Wavelength

Answer
A) Frequency

The distance between two successive crests or troughs in a wave is called:
A) Amplitude
B) Period
C) Wavelength
D) Frequency

Answer
C) Wavelength

Which type of wave requires a medium to travel through?
A) Electromagnetic wave
B) Sound wave
C) Light wave
D) Radio wave

Answer
B) Sound wave

In which medium does sound travel the fastest?
A) Solid
B) Liquid
C) Gas
D) Vacuum

Answer
A) Solid

When a vibrating object moves in a regular and repeating motion, it is said to be in:
A) Simple harmonic motion
B) Uniform motion
C) Random motion
D) Accelerated motion

Answer
A) Simple harmonic motion

The restoring force in simple harmonic motion is proportional to:
A) Displacement
B) Velocity
C) Acceleration
D) Frequency

Answer
A) Displacement

The formula for the frequency of a vibrating object is:
A) Frequency = 1 / Period
B) Frequency = Period × Speed
C) Frequency = Wavelength × Amplitude
D) Frequency = Speed / Wavelength

Answer
A) Frequency = 1 / Period

Which of the following is an example of transverse waves?
A) Sound waves
B) Water waves
C) Seismic waves
D) Radio waves

Answer
B) Water waves

The unit of frequency is:
A) Hertz
B) Newton
C) Joule
D) Meter

Answer
A) Hertz

The number of cycles of a vibrating system completed in one second is its:
A) Wavelength
B) Speed
C) Frequency
D) Period

Answer
C) Frequency

The effect of damping on a vibrating system is to:
A) Increase the amplitude
B) Decrease the amplitude
C) Increase the frequency
D) Decrease the frequency

Answer
B) Decrease the amplitude

Which of the following waves does not require a medium for propagation?
A) Sound waves
B) Water waves
C) Light waves
D) Seismic waves

Answer
C) Light waves

The principle of superposition is used to explain:
A) Constructive and destructive interference
B) Simple harmonic motion
C) Doppler effect
D) Resonance

Answer
A) Constructive and destructive interference

What type of wave has particles vibrating perpendicular to the direction of wave travel?
A) Longitudinal wave
B) Transverse wave
C) Surface wave
D) Shock wave

Answer
B) Transverse wave

Which phenomenon occurs when a vibrating object matches the natural frequency of another object?
A) Reflection
B) Refraction
C) Resonance
D) Diffraction

Answer
C) Resonance

The frequency of a vibrating string is affected by:
A) Tension
B) Length
C) Mass
D) All of the above

Answer
D) All of the above

In a pendulum, what factor primarily affects its period?
A) Mass of the pendulum
B) Length of the pendulum
C) Amplitude of swing
D) Temperature

Answer
B) Length of the pendulum

Which of the following is not a characteristic of simple harmonic motion?
A) Restoring force proportional to displacement
B) Constant amplitude
C) Uniform acceleration
D) Oscillatory motion

Answer
C) Uniform acceleration

The phase difference between two waves is:
A) The difference in their frequencies
B) The difference in their amplitudes
C) The difference in their wavelengths
D) The difference in their displacements at a given point

Answer
D) The difference in their displacements at a given point

Which wave property is defined as the distance traveled by the wave in one period?
A) Amplitude
B) Frequency
C) Speed
D) Wavelength

Answer
C) Speed

In a vibrating system, the frequency of the forced vibrations depends on:
A) The natural frequency of the system
B) The amplitude of vibrations
C) The frequency of the external force
D) The phase of the external force

Answer
C) The frequency of the external force

The energy of a vibrating system is primarily in the form of:
A) Kinetic energy
B) Potential energy
C) Thermal energy
D) Chemical energy

Answer
A) Kinetic energy

A standing wave is formed by:
A) Two waves traveling in the same direction
B) Two waves traveling in opposite directions
C) A single wave reflecting off a boundary
D) Multiple waves of different frequencies

Answer
B) Two waves traveling in opposite directions

The phenomenon of sound waves bending around obstacles is called:
A) Diffraction
B) Refraction
C) Reflection
D) Interference

Answer
A) Diffraction

The quality of a musical note is determined by its:
A) Frequency
B) Amplitude
C) Harmonics
D) Speed

Answer
C) Harmonics

The change in frequency of a wave due to the motion of the source is known as:
A) Doppler effect
B) Resonance
C) Interference
D) Diffraction

Answer
A) Doppler effect

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

Answer
C) Sound wave

The speed of a wave is calculated by:
A) Speed = Wavelength / Frequency
B) Speed = Frequency / Wavelength
C) Speed = Amplitude × Frequency
D) Speed = Wavelength × Amplitude

Answer
B) Speed = Frequency / Wavelength

Which term describes the rate at which a vibrating object moves through its equilibrium position?
A) Amplitude
B) Frequency
C) Speed
D) Velocity

Answer
D) Velocity

The point of maximum displacement on a transverse wave is called a:
A) Crest
B) Trough
C) Node
D) Antinode

Answer
A) Crest

In a vibrating string, which factor affects the pitch of the sound produced?
A) Tension
B) Length
C) Thickness
D) All of the above

Answer
D) All of the above

The principle that explains why a swing moves back and forth is:
A) Conservation of energy
B) Simple harmonic motion
C) Newton’s first law
D) Coulomb’s law

Answer
B) Simple harmonic motion

What happens to the frequency of a wave if its wavelength is increased while the speed remains constant?
A) It increases
B) It decreases
C) It remains the same
D) It becomes zero

Answer
B) It decreases

The motion of a pendulum is an example of:
A) Uniform circular motion
B) Simple harmonic motion
C) Rotational motion
D) Projectile motion

Answer
B) Simple harmonic motion

The effect of a medium on the speed of sound is primarily determined by:
A) Density
B) Temperature
C) Pressure
D) All of the above

Answer
D) All of the above

Which of the following is not a characteristic of sound waves?
A) They can travel through a vacuum
B) They are longitudinal waves
C) They require a medium for propagation
D) They can be reflected and refracted

Answer
A) They can travel through a vacuum

The phenomenon where the amplitude of vibration increases due to matching frequencies is known as:
A) Interference
B) Diffraction
C) Resonance
D) Reflection

Answer
C) Resonance

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