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 ball is dropped from a height of 4.2 meters. To what height it will rise if there is no loss of KE after rebounding?

Question # 2

A train is moving with a velocity of 25 m/s and a car is moving behind it by a velocity of 8 m/s in same direction. The relative velocity of train with respect to car is

Question # 3

Swimming is based on the principle of

Question # 4

When a shell explodes in mid-air, its fragments fly off in

Question # 5

Change in momentum is one second called.

Question # 6

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

Question # 7

A body whose momentum is constant must have constant

Question # 8

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

Question # 9

For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to

Question # 10

A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?

Question # 11

Which of the following four statements is false?

Question # 12

Inertia mass and gravitational mass are

Question # 13

A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

Question # 14

Ethanol (alcohol) as a type of:

Question # 15

The motion of a body in a straight line is the motion in

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Slope of velocity time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work
2 When a horse pulls a cart, the force that makes the horse run forward is the force exerted by
A. The horse on the ground
B. The horse on the cart
C. The ground on the horse
D. The ground on the cart
3 The mass of a body measured by a physical balance in a lift at rest is found to be m, if the lift is going up with an acceleration a, its mass will be measured as
A. m (1 - a/g)
B. m (1 + a/g)
C. m
D. Zero
4 Unit of impulse in
A. Newton
B. Kg m
C. Kg m/s
D. Joule
5 When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is
A. zero
B. negative
C. positive
D. non-existing
6 The short distance between two points direction from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
7 Velocity of a body changes if
A. direction of the body changes
B. speed of the body changes
C. neither speed nor direction changes
D. either speed or direction changes
8 The collision in which KE is conserved but momentum is not conserved is called:
A. Elastic collision
B. Inelastic collision
C. any these
D. None of these
9 The direction of velocity is along the direction of
A. distance
B. displacement
C. acceleration
D. all of them
10 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

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