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

A typical rocket ejects the burnt gases at speeds over

Question # 2

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

Question # 3

A change in position of a body from its initial position to its final position is known as

Question # 4

If the instantaneous velocity of a body does not change. the body is said to be moving with

Question # 5

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

Question # 6

The path followed by the projectile is known as:

Question # 7

The dimension of linear inertia is:

Question # 8

When two protons are brought closer potential energy of both of them:

Question # 9

What must be changing when a body is accelerating uniformly?

Question # 10

A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:

Question # 11

Tick the conservative force:

Question # 12

Inertia mass and gravitational mass are

Question # 13

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

Question # 14

The linear momentum of the body is defined as

Question # 15

If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
2 In equation F=ma, then mass 'm' is
A. rest mass
B. variable mass
C. inertial mass
D. gravitational mass
3 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
4 The product of force and time is called change in:
A. Momentum
B. Impulse
C. Force
D. Both a and b
5 Which quantity has the same units as impulse
A. force
B. work
C. linear momentum
D. acceleration
6 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?
A. 60 km/hr
B. 80 km/hr
C. 120 km/hr
D. 180 km/hr
7 An inertial frame of reference is that frame of reference in which
A. a = 0
B. a > 0
C. a < 0
D. all of them
8 Tick the conservation force:
A. Tension in a string
B. Air resistance string
C. Elastic spring force
D. Frictional force
9 A lift is moving up with acceleration equal to 1/5 of that due to gravity. The apparent weight of a 60 kg man standing in lift is
A. 60 kg wt
B. 72 kg wt
C. 48 kg wt
D. Zero
10 Acceleration in a body is always produced in the directin of:
A. Velocity
B. Weight
C. Force
D. Botha B and C

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