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

The distance covered by a body in unit time is called.

Question # 3

The product of force and time is called

Question # 4

Newton's laws are adequate for speeds that are

Question # 5

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

Question # 6

The motion in a plane is the motion in

Question # 7

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

Question # 8

The path followed by the projectile is known as:

Question # 9

When a horse pulls a cart, the force that makes the horse run forward is the force exerted by

Question # 10

If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have

Question # 11

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

Question # 12

In equation F=ma, then mass 'm' is

Question # 13

If m is the mass of the gases ejected per second with velocity v relative to the rocket of mass M, then the acceleration of rocket is

Question # 14

When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.

Question # 15

The velocity given to a body to go out of the influence of earth's gravity is known as:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Which one of the following is dimensionless:
A. Acceleration
B. Velocity
C. Density
D. Angle
2 A change in position of a body from its initial position to its final position is known as
A. relative motion
B. displacement
C. distance
D. acceleration
3 A projectile on its path gets divided into two pieces at its highest point. Which is true?
A. Momentum increases
B. Momentum decreases
C. Kinetic energy increases
D. Kinetic energy decreases
4 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
5 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
6 A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be:
A. 10 m/sec2
B. 20 m/sec2
C. 30 m/sec2
D. Zero
7 A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:
A. 10 m/sec2
B. 20 m/sec2
C. 30 m/sec2
D. Zero
8 The effect of applying a force on a moving body is to change
A. its direction of motion only
B. its speed of motion only
C. both the direction and speed of motion
D. its inertia only
9 When brakes are applied to a fast moving car, the passenger will be thrown:
A. Forward
B. Backward
C. Downward
D. none of these
10 A motorist travels A to B at a speed at 40 km/h and returns at speed of 60km/h. His average speed will be
A. 40 km/h
B. 48 km/h
C. 50 km/h
D. 60 km/h

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