Quiz Vibration

The diagram shows the vibration of the pendulum. Mention the half of vibration

• a-b-c-b

• a-b-c

• a-b-c-b-a

• a-b

A pendulum make 12 oscillation in 2 s. Find the period and frequency of the pendulum

• Period: 0.167 s, Frequency: 6 Hz

• Period: 1 s, Frequency: 1 Hz
• Period: 0.25 s, Frequency: 4 Hz
• Period: 0.5 s, Frequency: 2 Hz

The diagram shows the weighted spring vibrating from equilibrium position. When the spring make 25 oscillation in 4 s, find the frequency and period

• Frequency: 4 Hz, Period: 0.25 s
• Frequency: 5 Hz, Period: 0.2 s
• Frequency: 8 Hz, Period: 0.125 s
• Frequency: 6.25 Hz, Period: 0.16 s

What is the amplitude?

• The amplitude is the total energy of the wave.
• The amplitude is the maximum displacement from the equilibrium position.
• The amplitude is the frequency of the wave.
• The amplitude is the speed of the wave.

What is the period?

• The time taken for one complete vibration

• A mathematical constant.
• A historical era in geology.
• A type of musical note.

What is the frequency?

• Frequency is the number of complete vibration in one second

• Frequency refers to the speed of an object in motion.
• Frequency is the total amount of energy in a system.
• Frequency is the distance between two points in space.

What is the international unit of frequency?

• Decibel (dB)
• Newton (N)
• Joule (J)
• Hertz (Hz)

What is the vibration?

• Vibration is the a periodic motion in which and object moves back and forth repeatedly about the equilibrium position

• Vibration is the color change in materials.
• Vibration is the process of heating an object.
• Vibration is a type of sound wave.

The period of pendulum is 12 s, and number of oscillation the pendulumis 20. Find the time to make the oscillation

• 240 s
• 120 s
• 300 s
• 180 s

A pendelum make 340 oscillation, and has frequency 12 Hz. Find the time to make the oscillation

• 28.33 seconds
• 25 seconds
• 40 seconds
• 15 seconds