Question # 1

Work has the same dimensions as that of

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Power

Liner momentum

Angular momentum

Torque

The maximum height reached by a projectile with a velocity of 14 m s-1 at an angle of 30 ^owith the horizontal is.

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1.5 m

2.5 m

1 m

2 m

The horizontal range is equal for the angles.

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30 ^o and 45 ^o

30 ^oand 60 ^o

45 ^o and 90 ^o

60 ^oand 75 ^o

The magnitude of the resultant of two forces may be increased by

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Increasing the angle between them

Decreasing the angle between them

Drawing the parallelogram to represent them

Drawing the force perpendicularly

The resultant of two force 3 N and 4 N making an angle 90 ^o with each other is.

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1 N

3 N

5 N

10 N

The diver spins faster when moment of inertia becomes

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Smaller

Greater

Double

zero

The ratio of inertial mass to gravitational mass is.

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1

0.5

2

3

The dimensions of work are

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[MLT-2]

[ML2T-2]

[ML2T-1]

[MLT-1]

If slope of velocity time graph gradually decreases, then a body is said to have

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Negative acceleration

Positive acceleration

Uniform velocity

Variable velocity

Two vectors of magnitudes 5 N and 7 N respectively are acting on a body if the angle between them is a right angle, their resultant vector will be.

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2 N

4 N

6 N

8 N

The gravitational force between two bodies does not depends upon.

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The product of their masses

Their separation

The sum of their masses

The constant of gravitation

It the force acting on a body is doubled its acceleration becomes.

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Half

Constant

Double

One fourth

Which of the following is a set of supplementary units.

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Radian and steradian

Radian and mole

Steradian and candela

Radian and kelvin

The number of 0.0001 is abbreviated correctly by

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1 x 10⁴

10^-3

10^-4

0.1 x 10⁴

Rate of change of momentum is called.

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Torque

Force

Impulse

Inertia

The perpendicular distance between the line of action of forces and the axis of rotation

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Torque

Moment arm

Moment of force

Momentum

Impulse is equal to.

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F x t/2

\F x t /4

F x t

F x t /m

What is the number of degree of freedom of an oscillating simple gravity pendulum

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1

2

3

4

A mason of 9.8 N weight is climbing on a 20 m high ladder The P.E. of mason at the middle of the ladder is.

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98 J

196 J

960 .4 J

1920 .8 J

Which vector gives the displacement from one point another in space.

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Null vector

Position vector

Unit vector

Distance vector

Original source of biomass is.

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Stars

Moon

earth

Sun

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