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

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

Question # 2

The decrease in velocity per unit time is called:

Question # 3

During the upward motion of the projectile, the vertical component of velocity.

Question # 4

The artillery shells travel along parabolic paths under the influence of

Question # 5

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

Question # 6

A body whose momentum is constant must have constant

Question # 7

At the top of the trajectory of a projectile the acceleration is

Question # 8

The quantity F x t is called as

Question # 9

If two bodies of equal masses moving in the same direction collide elastically, then their velocities.

Question # 10

The consumption of energy by a 1000 watt heter in half an hour is:

Question # 11

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

Question # 12

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

Question # 13

If the acceleration of a body is not uniform, then velocity-time graph will be:

Question # 14

Ethanol (alcohol) is a type of:

Question # 15

An inertial frame of reference is that frame of reference in which

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?
A. The faster one
B. Depends on their mass
C. The slower one
D. Both will reach simultaneously
2 The SI units of momentum is
A. kg m s-2
B. kg ms
C. kg m s2
D. N-s
3 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
4 A body of mass 1.0 kg is falling with an acceleration of 10 m/s2. Its apparent weight will be (g=10 m/s2)
A. 1.0 kg wt
B. 2.0 kg wt
C. 0.5 kg wt
D. Zero
5 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:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
6 Which of the following is not a projectile
A. a bullet fired from a gun
B. a space ship
C. a football in air
D. an artillery shell
7 A cold soft drink is kept on the balance. When the cap is opened, then the weight
A. Increases
B. Decreases
C. First increases, then decreases
D. Remains same
8 In above figures, tell which set of graphs shows that a body is moving with uniform velocity:
A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
9 If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of
A. 20 m
B. 400 m
C. 1440 m
D. 2880 m
10
Swimming becomes possible because of______law of motion:
A. First
B. Second
C. Third
D. None of these

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