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

Which of the following four statements is false?

Question # 2

The second law gives the relationship between

Question # 3

A body is thrown from a height h with speed u, it hits the ground with speed V

Question # 4

If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)

Question # 5

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

Question # 6

If d is the displacement of the body in time t, then its average velocity will be

Question # 7

During the upward motion of the projectile, the vertical component of velocity:

Question # 8

When two protons are brought closer potential energy of both of them:

Question # 9

Inertial frame of references are those frame of references which are moving with

Question # 10

Ethanol (alcohol) is a type of:

Question # 11

The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to

Question # 12

A car moves for half of its time at 80 km/h and rest half of time at 40 km/h, The total distance covered is 60 km. What is the average speed of the car?

Question # 13

The product of force and time is called change in:

Question # 14

A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of:

Question # 15

The vertical component of velocity of a projectile during its motion is minimum

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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?
A. 0.1 m/s
B. 10 m/s
C. 1 m/s
D. 0.01 m/s
2 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
3 In the expression F x t, the force F is
A. total force
B. instantaneous force
C. average force
D. all of them
4 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
5 When a person jumps off the ground, the reaction force of the ground is
A. greater than the weight of the person
B. smaller than the weight of the person
C. equal to the weight of the person
D. zero
6 Tick the conservative force:
A. tension in a string
B. Air resistance
C. Elastic spring force
D. Frictional force
7 If the acceleration of a body is negative, then slope of the velocity-time graph will be:
A. Zero
B. Positive
C. Negative
D. Infinity
8 Dimensions of velocity are
A. [L]
B. [T]
C. [LT-1]
D. [LT-2]
9 The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to
A. zero
B. maximum
C. minimum
D. infinity
10 A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?
A. 150 m
B. 250 m
C. 350 m
D. 400 m

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