ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 3 Motion and Force

Try The 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 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

Question # 2

Change in momentum is one second is called:

Question # 3

If the objects of different masses move with the same velocity, then it is more difficult to stop the

Question # 4

If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have

Question # 5

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 # 6

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

Question # 7

Inertia mass and gravitational mass are

Question # 8

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 # 9

Bodies failing freely under gravity provide good example of motion under

Question # 10

A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is

Question # 11

The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90° with the force of the smaller magnitude, then their magnitudes are

Question # 12

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

Question # 13

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

Question # 14

Ethanol (alcohol) is a type of:

Question # 15

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Velocity of a body changes if
A. direction of the body changes
B. speed of the body changes
C. neither speed nor direction changes
D. either speed or direction changes
2
Swimming becomes possible because of______law of motion:
A. First
B. Second
C. Third
D. None of these
3 A typical rocket consumes about
A. 100 kg s-1of fuel
B. 1000 kg s-1of fuel
C. 10000 kg s-1of fuel
D. 100000 kg s-1of fuel
4 For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to
A. Four times
B. Thrice
C. Once
D. Twice
5 If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have
A. different values
B. same values
C. zero valves
D. constant valves
6 A car travels first half distance between two places with a speed of 30 km/h and remaining half with a speed of 50 km/h. The average speed of the car is
A. 37.5 km/h
B. 10 km/h
C. 42 km/h
D. 40 km/h
7 Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is
A. 22 m
B. 6 m
C. 33 m
D. 7.8 m
8 Newton published laws of motion in his famous book "principia" in
A. 1867
B. 1667
C. 1676
D. 1687
9 The decrease in velocity per unit time is called:
A. Variable Acceleration
B. Average Acceleration
C. Retardation
D. None of these
10 During the upward motion of the projectile, the vertical component of velocity:
A. Decreases
B. Increases
C. Remains constant
D. None of these

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