Question # 1

Motion of butterfly is an example of.

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Random

Circular motion

Linear motion

Vibratory motion

Which of the following is a vector quantity?

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Distance

Power

Speed

Displacement

The velocity of freely falling bbodies moving upward.

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Decreases

Increases

Constnat

zero

Dependent quantities are taken on

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x - axis

-ve x -axis

y-axis

- y-axis

a ball is thrown vertically upward. Its velocity at the highest point is.

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10 ms^-2

-10 ms^-1

Zero

none of them

the to and fro motion of a body about its mean positionis called.

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Circular motion

Random motion

Rotatory motion

Vibratory motion

The motion of a body about an axis is called.

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Random motion

Vibratory motion

Rotatory motion

Circular motion

The velocity of bodies falling down

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Dwscreses

Increases

Zero

Constant

Paratrooper while coming down attains a velocity called.

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Variable velocity

Uniform velocity

Average velocity

Terminal velocity

The acceleration of a body moving the uniform velocity is.

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Uniform

Zero

Negative

Variable

Brownian motion is an example of.

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Linear motion

Random motion

Circular motion

Vibratory motion

When two bodies are in motion then the velocity of one body relative to the other is called.

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Relative velocity

Uniform velocity

Variable velocity

Average velocity

The value of gravitational acceleration when a body is moving in downward direction is.

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10 ms^-1

10 ms^-2

10 m

-10 ms

The quantities that describe completely by magnitude and direction are.

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Scalar

Vector

Base

Derived

Distance covered by freely falling downward body in first second.

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5 m

29.4 m

10 m

19.6 m

The unit of velocity and speed is.

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ms

ms^-2

ms^-1

ms-3

Displacement is a quantity.

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Scalar

Vector

Both a and b

None of these

Graph is plotted between ........ variable.

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1

2

3

4

Quantities between which a graph is plotted are called.

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Scalars

Vectors

Variables

None

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

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Positive

Negative

Variable

Uniform

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

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