Question # 1

Bodies failing freely under gravity provide good example of motion under

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non-uniform acceleration

uniform acceleration

variable acceleration

increasing acceleration

The mass of the object is a quantities measure of its

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speed

velocity

acceleration

inertia

A body of mass 5 kg is acted upon by a total change n momentum will be:

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10 NS

100 NS

140 NS

200 NS

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

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1.46 m sec^-1

2.44 m sec^-1

3.42 m sec^-1

4.43 m sec^-1

A motorist travels A to B at a speed at 40 km/h and returns at speed of 60km/h. His average speed will be

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40 km/h

48 km/h

50 km/h

60 km/h

When the total displacement is divided by total time taken, we get:

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Velocity

Average speed

Average velocity

None of these

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

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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 these

When we consider the average velocity of a body, then the body is moving in

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straight line

curved path

may be in a straight or curved path

none of them

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

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4 : 5

7 : 9

16 : 25

1 : 1

The quantity F x t is called as

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momentum

velocity

acceleration

impulse

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

A mass of 5kg moves with an acceleration of 10m s^-2force applied is

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10N

50N

2N

20N

One newton is a force that produces an acceleration of 0.5 m/sec²in a body of mass:

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2 Kg

3 Kg

4 Kg

8 Kg

Velocity is a

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scalar quantity

vector quantity

constant quantity

none of them

For a fixed force, larger is the mass of a body the

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greater is its acceleration

smaller is its acceleration

smaller is its weight

zero is its acceleration

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

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