Question # 1

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

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Time period

Amplitude

Phase

Frequency

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

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Extreme position

Mean position

In between extreme and mean position

None of them

One complete round trip of a vibrating body is called.

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Frequency

Time period

Vibration

Amplitude

The wave form of SHM is.

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Sine wave

Cosine wave

Tangent wave

Square wave

Time period of simple pendulum only depends on

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Mass

Amplitude

Density

Length

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

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1 Hz

0.5 Hz

1.5 Hz

2 Hz

One complete round trip of a body is called

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Displacement

Time period

Vibration

Frequency

The velocity of a particle having SHM is 'v' at means position. If its amplitude is doubled them velocity at mean position will be

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v/2

v

2v

4 v

Turning of radio is example of.

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Mechanical resonance

Electrical resonance

Physical resonance

Biological resonance

The amplitude of a vibrating body at resonance in vacuum is

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Minimum

Maximum

Zero

Infinite

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

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10 sec

20 sec

5 sec

None of these

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

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10 J

20 J

30 J

40 J

Angular frequency is the characteristic of

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Linear motion

Vibratory motion

Circular motion

All of these

The mathematical expression for the restoring force is.

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F = kx

F = ma

F = dp/dt

F = -kx

At which place the motion of a simple pendulum will be slowest.

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Karachi

K-2

Murree

Lahore

The frequency of 2nd pendulum is

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0.5 Hz

1 Hz

1.5 Hz

2 Hz

In S.H.M, the acceleration of the body is directly proportional to

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Weight of body

Applied force

Amplitude

Displacement

P.E. of a spring is stored in

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Spring

mass

Both of them

None of these

the length of simple pendulum of time period 1 second is

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2 m

1 m

0.5

0.25 m

The product of time period and frequency is.

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Zero

1

2

3

The frequency of waves produced in microwave oven is

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1435 Hz

2450 MHz

1860 MHz

2850 Hz

The motion of a simple pendulum is the example of

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Vibratory motion

Rotatory motion

Periodic motion

Both a and c

The acceleration produced by elastic restoring force is

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Perpendicular to force

Opposite to force

In same direction as force

Zero

If the tension a stretched string is made four times then the velocity of wave.

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Remains same

Is halved

Becomes twice

Becomes 4 times

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