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

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

Question # 2

A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:

Question # 3

A lift is descending at a constant speed V. A passenger in the lift drops a coin. The acceleration of the coin towards the floor will be

Question # 4

A dirty carpet is to be cleaned by heating. This is in according with______law of motion.

Question # 5

When a body is moving on a surface, the force of friction is called

Question # 6

Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s2

Question # 7

The decrease in velocity per unit time is called

Question # 8

A particle of mass 0.5 g moving along x-axis is located of x1= 15 m at t1= 5s and x2= 33 m at t2= 13s its average velocity is

Question # 9

A body whose momentum is constant must have constant

Question # 10

The slopes of the tangent at any point on the curve gives the value of the

Question # 11

When brakes are applied to a fast moving car, the passenger will be thrown:

Question # 12

Acceleration produced in a body by the force varies

Question # 13

Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is

Question # 14

A non-inertial frame of reference is that frame of reference in which

Question # 15

In velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?
A. 4 : 5
B. 7 : 9
C. 16 : 25
D. 1 : 1
3 A car travels first half distance between two places with a speed of 30 km/h and remaining half with a speed of 50 km/h. The average speed of the car is
A. 37.5 km/h
B. 10 km/h
C. 42 km/h
D. 40 km/h
4 Swimming becomes possible because of______law of motion.
A. First
B. Second
C. Third
D. None of these
5 Unit of impulse in
A. Newton
B. Kg m
C. Kg m/s
D. Joule
6 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
7 When two protons are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
8 The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is
A. 500 ms-1
B. 1000 ms-1
C. 250 ms-1
D. Zero
9 If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)
A. mg
B. m (g+a)
C. m (g - a)
D. 0
10 Swimming is based on the principle of
A. Newton's 1st law
B. Newton's 2nd law
C. Newton's 3rd law
D. All

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