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

Acceleration in a body is always produced in the directin of:

Question # 2

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

Question # 3

Velocity of a body changes if

Question # 4

Rate of change of momentum is called

Question # 5

The decrease in velocity per unit time is called

Question # 6

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

Question # 7

The collision in which KE is conserved but momentum is not conserved is called:

Question # 8

The expression F x t is called impulse if the time 't' is

Question # 9

A 5 kg mass is falling freely, the force acting on, it will be

Question # 10

The effect of applying a force on a moving body is to change

Question # 11

A body walks to his school at a distance of 6 km with a speed of 2.5 km/h and walks back with a constant speed of 5 km/h. His average speed for round trip expressed in km/h is

Question # 12

If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have

Question # 13

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 # 14


Swimming becomes possible because of______law of motion:

Question # 15

The velocity of a body at any instant of its motion is known as

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:
A. 20 minutes
B. 48 minutes
C. 10 minutes
D. 5 minutes
2 During the upward motion of the projectile, the vertical component of velocity:
A. Decreases
B. Increases
C. Remains constant
D. None of these
3 At the top of the trajectory of a projectile the acceleration is
A. The maximum
B. The minimum
C. Zero
D. g
4 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
5 A body moving with uniform velocity has
A. positive acceleration
B. negative acceleration
C. infinite acceleration
D. zero acceleration
6 The linear momentum of the body is defined as
A. p=ma
B. p=1/2ma
C. p=mv
D. p=1/2mv
7 Two bodies of masses 1 kg and 5 kg are dropped gently form the top of a tower. A a point 20 cm from the ground both the bodies will have the same
A. Momentum
B. Kinetic energy
C. Velocity
D. Total energy
8 Acceleration produced in a body by the force varies
A. inversely as the applied force
B. directly as the applied force
C. directly as the mass of the body
D. none of them
9 The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
10 The projectile attains maximum horizontal range when it is projected at an angle of
A. 30°
B. 45°
C. 60°
D. 75°

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