Physics Fsc Part 1 Chapter 7 Online Test

The amplitude of a vibrating body at resonance in vacuum is

• Minimum A
• Maximum B
• Zero C
• Infinite D

the acceleration of a body having SHM, depends upon its.

• Time period A
• Amplitude B
• Frequency C
• Displacement from mean position D

One complete round trip of a body is called

• Displacement A
• Time period B
• Vibration C
• Frequency D

The motion of a simple pendulum is the example of

• Vibratory motion A
• Rotatory motion B
• Periodic motion C
• Both a and c D

In simple harmonic motion the velocity of a particle is maximum at.

• Extreme position A
• Mean position B
• In between extreme and mean position C
• None of them D

P.E. of a spring is stored in

• Spring A
• mass B
• Both of them C
• None of these D

One complete round trip of a vibrating body is called.

• Frequency A
• Time period B
• Vibration C
• Amplitude D

The time period of an oscillating mass spring system is 10 second. If mass attached to spring id doubled then time period becomes.

• 10 sec A
• 20 sec B
• 5 sec C
• None of these D

The produce oscillation, body is pulled away from its

• Mean position A
• Extreme position B
• Both a and b C
• None of these D

A quantity which indicates the state and direction of a vibrating body is known as

• Time period A
• Amplitude B
• Phase C
• Frequency D

Damping is the process in which energy

• Increases A
• Remains constant B
• Dissipates C
• None of these D

If amplitude of a simple pendulum is increased by 4 times the time period will be.

• Four times A
• Half B
• Same C
• Two times D

• 
  A
• 
  B
• 
  C
• 
  D

A spring of spring constant 10 N/m after loading that amplitude is 2m. Then the maximum P.E. is

• 10 J A
• 20 J B
• 30 J C
• 40 J D

If the time period of simple pendulum is 2 seconds its frequency will be.

• 1 Hz A
• 0.5 Hz B
• 1.5 Hz C
• 2 Hz D

The product of time period and frequency is.

• Zero A
• 1 B
• 2 C
• 3 D

A spring has a spring constant k. If it is cut in two equal parts, the spring constant of each part will be

• K A
• 2 K B
• K/2 C
• 4K D