ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 3 Motion and Force

Try The 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 bicycle is in motion, the frictional forces exerted by the ground are

Question # 2

An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow

Question # 3

Velocity is a

Question # 4

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 # 5

The linear momentum of the body is defined as

Question # 6

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/ss)

Question # 7

Change in momentum is one second is called:

Question # 8

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:

Question # 9

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?

Question # 10

The area under line velocity-time graph is numerically equal to the

Question # 11

The direction of the linear momentum is the direction of

Question # 12

Which of the following four statements is false?

Question # 13

Slope of velocity-time graph represents:

Question # 14

Swimming is based on the principle of

Question # 15

The magnitude of the displacement is a line from initial position to final position which is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The slopes of the tangent at any point on the curve gives the value of the
A. average velocity at that point
B. instantaneous velocity at that point
C. average acceleration at that point
D. instantaneous acceleration at that point
2 A body whose momentum is constant must have constant
A. Acceleration
B. Velocity
C. Force
D. None of these
3 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
4 The expression F x t is called impulse if the time 't' is
A. zero
B. very large
C. very small
D. infinite
5 A body of weight 1 N has a kinetic energy of 1 joule when its speed is:
A. 1.46 m sec-1
B. 2.44 m sec-1
C. 3.42 m sec-1
D. 4.43 m sec-1
6 The distance covered by a body in unit time is called.
A. Displacement
B. speed
C. Velocity
D. Both B and C
7 When we consider the average velocity of a body, then the body is moving in
A. straight line
B. curved path
C. may be in a straight or curved path
D. none of them
8 One KWh is equal to:
A. 3.6 x 102J
B. 3.6 KJ
C. 3.6 x 101KJ
D. 3.6 MJ
9 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
10 When two protons are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these

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