Physics ECAT Pre Engineering Chapter 3 Motion and Force

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 typical rocket ejects the burnt gases at speeds over

Question # 2

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

Question # 3

Tick the conservation force:

Question # 4

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

Question # 5

A snooker ball moving with velocity V collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of second snooker ball is

Question # 6

The shortest distance between two points directed from its initial point to final point is called:

Question # 7

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

Question # 8

A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot files at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to

Question # 9

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

Question # 10

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

Question # 11

Which of the following statements for an object in equilibrium is not true?

Question # 12

The short distance between two points direction from its initial point to final point is called:

Question # 13

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 # 14

Which of the following four statements is false?

Question # 15

In velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The mass of the object is a quantities measure of its
A. speed
B. velocity
C. acceleration
D. inertia
2 Work done along a closed path in a gravitational force is:
A. maximum
B. Minimum
C. Zero
D. Unity
3 Angular momentum
A. Scalar
B. Axial vector
C. Polar vector
D. At 45° angle
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 The product of force and time is called change in:
A. Momentum
B. Impulse
C. Force
D. Both a and b
6 The slopes of the tangent at any point on the curve gives the value of the
A. average velocity at that point
B. instantaneous velocity at that point
C. average acceleration at that point
D. instantaneous acceleration at that point
7 A body of weight 1 N has a kinetic energy of 1 joule when its speed is:
A. 1.46 m sec-1
B. 2.44 m sec-1
C. 3.42 m sec-1
D. 4.43 m sec-1
8 The artillery shells travel along parabolic paths under the influence of
A. magnetic field
B. electric field
C. electromagnetic field
D. gravitational field
9 At the top of the trajectory of a projectile the acceleration is
A. The maximum
B. The minimum
C. Zero
D. g
10 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

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