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 motion of a projectile is

Question # 2

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 # 3

The time rate of change of displacement is called:

Question # 4

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

Question # 5

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Question # 6

The projectile attains maximum horizontal range when it is projected at an angle of

Question # 7

If m is the mass of the gases ejected per second with velocity v relative to the rocket of mass M, then the acceleration of rocket is

Question # 8

Acceleration in a body is always produced in the directin of:

Question # 9

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

Question # 10

Inertia mass and gravitational mass are

Question # 11

Slope of velocity time graph represents:

Question # 12

The discuss used by athlete has a mass of 1 kg, its weight in newton is

Question # 13

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

Question # 14

Rocket engines lift a rocket from the earth surface, because hot gas with high velocity

Question # 15

A body of mass 1.0 kg is falling with an acceleration of 10 m/s2. Its apparent weight will be (g=10 m/s2)

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Bodies failing freely under gravity provide good example of motion under
A. non-uniform acceleration
B. uniform acceleration
C. variable acceleration
D. increasing acceleration
2 Acceleration in a body is always produced in the direction of :
A. Velocity
B. Weight
C. Force
D. Both B and C
3 A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is
A. Moving forward and gaining speed
B. Moving forward and losing speed
C. Moving forward with uniform speed
D. Moving backward with uniform speed
4 Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?
A. Their range will be same
B. Their maximum height will be same
C. Their landing velocity will be same
D. Their time of flight will be same
5 An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:
A. 100 m/sec
B. 140 m/sec
C. 1960 m/sec
D. 196 m/sec
6 The direction of the acceleration is the same as that of
A. speed
B. velocity
C. both of them
D. none of them
7 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
8 When the surfaces are coated with a lubricant, then they
A. Stick to each other
B. Slide upon each other
C. Roll upon each other
D. None of these
9 In above figures, tell which set of graphs shows that a body is moving with uniform velocity:
A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
10 An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:
A. 100 m/sec
B. 140 m/sec
C. 1960 m/sec
D. 196 m/sec

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