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 time rate of change of displacement is called:

Question # 2

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

Question # 3

For a moving body, at any instant of time

Question # 4

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

Question # 5

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

Question # 6

Change in momentum is one second is called:

Question # 7

To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined

Question # 8

A snooker ball moving with velocity V collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of second snooker ball is

Question # 9

The direction of the acceleration is the same as that of

Question # 10

Acceleration produced in a body by the force varies

Question # 11

A projectile on its path gets divided into two pieces at its highest point. Which is true?

Question # 12

The entity which measures the quantity of motion in a body is called

Question # 13

Acceleration of a body is positive, if the velocity of the body is

Question # 14

A cold soft drink is kept on the balance. When the cap is opened, then the weight

Question # 15

Distance covered by a freely falling body in 2 sec will be

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 When brakes are applied to a fast moving car, the passengers will be thrown:
A. Forward
B. Backward
C. Downward
D. None of these
2 If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:
A. Force
B. Energy
C. work
D. impulse
3 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)
4 The motion in a plane is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension
5 The direction of the linear momentum is the direction of
A. speed
B. velocity
C. weight
D. none of them
6 The SI units of momentum is
A. kg m s-2
B. kg ms
C. kg m s2
D. N-s
7 Root out the conventional source of energy:
A. Energy from blomass
B. hydroelectric energy
C. Geothermal energy
D. None of these
8 A ball is dropped vertically down and it takes time t to reach the ground. At time t/2
A. The ball had covered exactly half the distance
B. The velocity of the ball was V/3 where V is the velocity when it reached the ground
C. The ball had covered less than half the distance
D. The ball had covered more than half the distance
9 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
A. 40 km/h
B. 48 km/h
C. 50 km/h
D. 60 km/h
10 Laws of motion are not valid in a system which is
A. inertial
B. non-interial
C. at rest
D. moving with uniform velocity

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