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

Inertial frame of references are those frame of references which are moving with

Question # 2

Dimensions of velocity are

Question # 3

The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:

Question # 4

A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when

Question # 5

A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

Question # 6

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

Question # 7

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Question # 8

Rocket engines lift a rocket from the earth surface, because hot gas with high velocity

Question # 9

A body whose momentum is constant must have constant

Question # 10

When a bicycle is in motion, the frictional forces exerted by the ground are

Question # 11

A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

Question # 12

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

Question # 13


Swimming becomes possible because of______law of motion:

Question # 14

When the surfaces are coated with a lubricant, then they

Question # 15

A typical rocket ejects the burnt gases at speeds over

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Suppose the water flows out from a pipe at 3kg s-1and its velocity changes from 5m s-1to zero on striking the wall, then the force exerted by water on wall will be
A. 5 N
B. 10 N
C. 15 N
D. 20 N
2 If a ball comes back to its starting point after bouncing off the wall several times, then its
A. total displacement is zero
B. average velocity is zero
C. none of them
D. both of them
3 A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after
A. 10 s
B. 20 s
C. 5 s
D. 40 s
4 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
5 A body falls freely from rest. It covers as much distance in the last second of its motion as covered in the first three seconds. The body has fallen for a time of
A. 3 s
B. 5 s
C. 7 s
D. 9 s
6 The discuss used by athlete has a mass of 1 kg, its weight in newton is
A. 9.8 N
B. 80 N
C. 98 N
D. 100 N
7 The direction of velocity is along the direction of
A. distance
B. displacement
C. acceleration
D. all of them
8 A body moving with uniform velocity has
A. positive acceleration
B. negative acceleration
C. infinite acceleration
D. zero acceleration
9 The velocity given to a body to go out of the influence of earth's gravity is known as:
A. Terminal velocity
B. Orbital velocity
C. Escape velocity
D. None of these
10 Acceleration of a body is negative if the velocity of the body is
A. constant
B. increasing
C. decreasing
D. none of them

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