ECAT Pre Computer Science Chapter 3 MCQ Test With Answer

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

Try The MCQ's Test For ECAT Physics Chapter 3 Motion and Force

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ECAT Physics Chapter 3 Motion and Force

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Question # 1

Body which falls freely under gravity provides good example of motion under:

Question # 2

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

Question # 3

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 4

When body moves with increasing acceleration, its velocity time graph is a

Question # 5

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 # 6

The direction of the acceleration is the same as that of

Question # 7

A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

Question # 8

Work done along a closed path in a gravitational force is:

Question # 9

Suppose the water flows out from a pipe at 3kg s-1and its velocity changes from 5m s-1to zero on striking the wall, then the force exerted by water on wall will be

Question # 10

When a body is moving on a surface, the force of friction is called

Question # 11

An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow

Question # 12

If a ball comes back to its starting point after bouncing off the wall several times, then its

Question # 13

In equation F=ma, then mass 'm' is

Question # 14

A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is

Question # 15

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?

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Newton's laws are adequate for speeds that are
A. low compared with the speed of light
B. equal to the speed of light
C. greater than the speed of light
D. all of them
2 A ball is dropped from a certain height and another ball is projected horizontally from the same point. Which of the following statement is correct?
A. Both hit the ground at the same veloctiy
B. Both hit the ground at the same speed
C. The change of velocity during the path for both balls is the same
D. The change of speed during the path for both balls is the same
3 A body of mass 5 kg is acted upon by a total change n momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
4 The artillery shells travel along parabolic paths under the influence of
A. magnetic field
B. electric field
C. electromagnetic field
D. gravitational field
5 When a bicycle is in motion but not pedaled, the force of friction exerted by the ground on the two wheels is such that it acts
A. In the backward direction on the front wheel and in the forward direction on the rear wheel
B. In the forwards directions on the front wheel and in the backward direction on the rear wheel
C. In the forward direction on both the wheels
D. In the backward direction on both the wheels
6 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)
7 When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.
A. Becomes half
B. Becomes zero
C. Ramains same
D. Becomes double
8 During the upward motion of the projectile, the vertical component of velocity.
A. Decreases
B. Increases
C. Remains constant
D. None of these
9 Which quantity has the same dimension as that of impulse?
A. KE
B. Power
C. Momentum
D. Work
10 The mass of the object is a quantities measure of its
A. speed
B. velocity
C. acceleration
D. inertia

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