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

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 # 2

Acceleration of a body at any particular instant during its motion is known as

Question # 3

When a shall explodes a mid-air, the total momentum of its fragments is

Question # 4

A typical rocket consumes about

Question # 5

Graphs which are used to illustrate the variation of velocity of an object with time are called

Question # 6

Unit of impulse in

Question # 7

Biomass includes:

Question # 8

One KWh is equal to:

Question # 9

Essential characteristic of equilibrium is

Question # 10

The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?

Question # 11

If the acceleration of a body is negative, then slope of the velocity-time graph will be:

Question # 12

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

Question # 13

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

Question # 14

The collision in which KE is conserved but momentum is not conserved is called:

Question # 15

Which quantity has the same dimension as that of impulse?

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
A. 17 m/s
B. 33 m/s
C. 17.5 m/s
D. none
2 Tick the conservation force:
A. Tension in a string
B. Air resistance string
C. Elastic spring force
D. Frictional force
3 When a force is applied on a body, several effects are possible Which of the following effect could not occur?
A. the body rotates
B. the body speeds up
C. the mass of the body decreases
D. the body changes its direction
4 Graphs which are used to illustrate the variation of velocity of an object with time are called
A. distance time graphs
B. speed time graphs
C. velocity time graphs
D. acceleration time graphs
5 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
6 If the acceleration of a body is not uniform, then velocity-time graph will be:
A. Curve
B. Straight line
C. Sphere
D. All of these
7 A body moving with uniform velocity has
A. positive acceleration
B. negative acceleration
C. infinite acceleration
D. zero acceleration
8 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
9 What must be changing when a body is accelerating uniformly?
A. the force acting on a body
B. the velocity of the body
C. the mass of the body
D. the speed of the body
10 The velocity given to a body to go out of the influence of earth's gravity is known as:
A. Terminal velocity
B. Orbital velocity
C. Escape velocity
D. None of these

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