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 will take it rise if there is no loss of KE after rebounding?

Question # 2

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

Question # 3

Laws of motion are not valid in a system which is

Question # 4

Which quantity has the same dimension as that of impulse?

Question # 5

Acceleration produced in a body by a force varies

Question # 6

If the instantaneous velocity of a body does not change. the body is said to be moving with

Question # 7

A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be:

Question # 8

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 9

Which of the following statements for an object in equilibrium is not true?

Question # 10

Newton's laws are adequate for speeds that are

Question # 11

Bodies which falls freely under gravity provides good example of motion under:

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

Force is a:

Question # 14

According to the law of conservation of linear momentum, the total linear momentum of an isolated system

Question # 15

The motion in a plane is the motion in

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Acceleration produced in a body by a 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
2 Body which falls freely under gravity provides good example of motion under:
A. Uniform acceleration
B. Non-uniform acceleration
C. Uniform velocity
D. None of these
3 An airplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically above a point A on the ground, a bomb is released from it. The bomb strikes the ground, at point B. The distance AB is
A. 1200 m
B. 0.33 km
C. 3.33 km
D. 33 km
4 The decrease in velocity per unit time is called:
A. Variable Acceleration
B. Average Acceleration
C. Retardation
D. None of these
5 Linear momentum is a
A. fixed quantity
B. constant quantity
C. scalar quantity
D. vector quantity
6 The consumption of energy by a 1000 watt heter in half an hour is:
A. 5 Kwh
B. 0.5 Kwh
C. 2.5 Kwh
D. 3.2 Kwh
7 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
8 A typical rocket ejects the burnt gases at speeds over
A. 400 ms-1
B. 40000m s-1
C. 40000 ms-1
D. 60000 ms-1
9 A body moving with uniform velocity has
A. positive acceleration
B. negative acceleration
C. infinite acceleration
D. zero acceleration
10 The path (or trajectory) described by a projectile is
A. a parabola
B. a hyperbola
C. a circle
D. a straight line

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