ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 3 Motion and Force

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Physics ECAT Pre Engineering Chapter 3 Motion and Force

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Question # 1

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

Question # 2

A body whose momentum is constant must have constant

Question # 3

Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is

Question # 4

Change in momentum is one second is called:

Question # 5

A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after

Question # 6

When a horse pulls a cart, the force that makes the horse run forward is the force exerted by

Question # 7

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

Question # 8

Slope of velocity-time graph represents:

Question # 9

A car moves for half of its time at 80 km/h and rest half of time at 40 km/h, The total distance covered is 60 km. What is the average speed of the car?

Question # 10

When a shall explodes a mid-air, the total momentum of its fragments is

Question # 11

When a body is moving on a surface, the force of friction is called

Question # 12

In above figures, tell which set of graphs shows that a body is moving with uniform velocity:

Question # 13

If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have

Question # 14

A rocket carries its own fuel in the form of

Question # 15

When body moves with increasing acceleration, its velocity time graph is a

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The mass of the object is a quantities measure of its
A. speed
B. velocity
C. acceleration
D. inertia
2 The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
3 If the acceleration of a body is negative, then slope of the velocity-time graph will be:
A. Zero
B. Positive
C. Negative
D. Infinity
4 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity
5 A body of mass 5 kg is acted upon by a total change n momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
6 The effect of applying a force on a moving body is to change
A. its direction of motion only
B. its speed of motion only
C. both the direction and speed of motion
D. its inertia only
7 One KWh is equal to:
A. 3.6 x 102J
B. 3.6 KJ
C. 3.6 x 101KJ
D. 3.6 MJ
8 The motion in a plane is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension
9 A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about
A. 80 m
B. 20 m
C. 160 m
D. 40 m
10 A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is
A. Moving forward and gaining speed
B. Moving forward and losing speed
C. Moving forward with uniform speed
D. Moving backward with uniform speed

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