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

The linear momentum of the body is defined as

Question # 2

If an iron ball and a wooden ball of the same radius was released from a height 'h' in vacuum, then time taken by both of them to reach ground will be

Question # 3

The vertical and horizontal range will be equal id angle of projection is

Question # 4

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

Question # 5

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

Question # 6

The artillery shells travel along parabolic paths under the influence of

Question # 7

Dimensions of velocity are

Question # 8

What must be changing when a body is accelerating uniformly?

Question # 9

A certain force gives an acceleration of 2 m/sec2to a body mass 5 kg. The same force would give a 20 kg object an acceleration of:

Question # 10

A particle of mass 0.5 g moving along x-axis is located of x1= 15 m at t1= 5s and x2= 33 m at t2= 13s its average velocity is

Question # 11

Which quantity has the same units as impulse

Question # 12

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

Question # 13

If the values of instantaneous and average velocities are equal, the body is said to be moving with

Question # 14

If the acceleration of a body is not uniform, then velocity-time graph will be:

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 In equation F=ma, then mass 'm' is
A. rest mass
B. variable mass
C. inertial mass
D. gravitational mass
3 A body whose momentum is constant must have constant
A. Acceleration
B. Velocity
C. Force
D. None of these
4 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
5 For maximum linear distance of travel, a projectile must be fired at an angle of
A. 0°
B. 45°
C. 90°
D. 60°
6 A cold soft drink is kept on the balance. When the cap is opened, then the weight
A. Increases
B. Decreases
C. First increases, then decreases
D. Remains same
7 Unit of impulse in
A. Newton
B. Kg m
C. Kg m/s
D. Joule
8 The vertical component of velocity of a projectile during its motion is minimum
A. at the time of projection
B. at the highest point
C. just before hitting the plane of projection
D. all of them
9 If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)
A. mg
B. m (g+a)
C. m (g - a)
D. 0
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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