Online Test

Question # 1

The motion of a steering wheel about its axis is a

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Circular motion

Vibratory motion

Rotatory motion

Random motion

The quantities that describe completely by magnitude and direction are:

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Base

Derived

scalar

Vector

A car starts form rest. Its velocity becomes 20 ms^-1 in 8 sec. Find its acceleration:

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160 ms^-1

2.5 ms^-1

25 ms^-1

None

A ball is thrown vertically upward. It velocity at the highest point is:

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-10 ms^-1

Zero

10 ms^-2

None of these

By dividing displacement of a moving body with time, we obtain

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Speed

Acceleration

Velocity

Deceleration

If the velocity of body decreases with time then acceleration will be

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Negative

Positive

Uniform

Variable

The force which completes a body to move in circle is

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Centripetal force

Centrifugal force

Perpendicular force

Tension

A scalar has:

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Direction only

Magnitude only

Both magnitude and direction

None of these

The average speed of Cheetah is:

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60 kmh^-1

75 kmh^-1

70 kmh^-1

80 kmh^-1

The unit of acceleration is:

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m

Ns^-1

ms^-1

ms^-2

If the weight of body is greater then tension then body will.

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Move upward

Move downward

Not move

None

The to and fro motion of a body about its mean position is known as

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Vibratory motion

Rotatory motion

Circular motion

Random motion

Coefficient of friction between tyre and dry road is.

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0.6

1

0.05

0.2

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Physics 9th Class English Medium Unit 2 Online Test MCQs With Answers

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