Question # 1

Acceleration in a body is always produced in the directin of:

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Velocity

Weight

Force

Botha B and C

Rate of change of momentum is called

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Impulse

Force

Torque

Momentum

Bodies which falls freely under gravity provides good example of motion under:

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Uniform acceleration

Non-uniform acceleration

Uniform velocity

None of these

For maximum linear distance of travel, a projectile must be fired at an angle of

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0°

45°

90°

60°

The discuss used by athlete has a mass of 1 kg, its weight in newton is

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9.8 N

80 N

98 N

100 N

A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be:

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10 NS

100 NS

140 NS

200 NS

The three equation of motions are useful only for

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linear motion with increasing acceleration

line motion with uniform acceleration

linear motion with zero acceleration

linear motion with varying acceleration

If the velocity time graph is a straight line parallel to time-axis, then it means that:

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The body is moving with uniform velocity

The body is moving with uniform acceleration

The body is at rest

None of above

Which of the following is not a projectile

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a bullet fired from a gun

a space ship

a football in air

an artillery shell

The distance covered by a body in unit time is called.

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Displacement

speed

Velocity

Both B and C

A the top of the trajectory of a projectile, the directions of its velocity and acceleration are

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Perpendicular to each other

Parallel to each other

Inclined to each other at an angle of 45°

Anitparallel to each other

Work done along a closed path in a gravitational field is:

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Maximum

Minimum

Zero

Unity

If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:

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Force

Energy

work

impulse

The magnitude of the force producing an acceleration of 10 m/sec²in a body of mass 500 grams is:

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3 N

4 N

5 N

6 N

The vertical and horizontal range will be equal id angle of projection is

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76°

45°

60°

120°

The time of flight of a projectile motion equal to

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half of the time to reach maximum height

twice the time to reach maximum height

one fourth of time to reach maximum height

time to reach maximum height

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ECAT Physics Chapter 3 Motion and Force Online Test MCQs With Answers

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