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


Swimming becomes possible because of______law of motion:

Question # 2

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

Question # 3

Which of the following four statements is false?

Question # 4

The horizontal range of projectile, at a certain place, depends upon

Question # 5

If speed of electron is 5 x 105m/s. How long does it take one electron to transverse 1 m?

Question # 6

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

Question # 7

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

Question # 8

The quantity F x t is called as

Question # 9

Newton published laws of motion in his famous book "principia" in

Question # 10

Acceleration of a body at any particular instant during its motion is known as

Question # 11

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

Question # 12

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?

Question # 13

Laws of motion are not valid in a system which is

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The path (or trajectory) described by a projectile is
A. a parabola
B. a hyperbola
C. a circle
D. a straight line
2 If the velocity time graph is a straight line parallel to the time-axis, then it means:
A. The body is moving with uniform velocity
B. The body is moving with uniform acceleration
C. The body is at rest
D. None of these
3 Bodies which falls freely under gravity provides good example of motion under:
A. Uniform acceleration
B. Non-uniform acceleration
C. Uniform velocity
D. None of these
4 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
5 Flight of rocket in the space is an example of
A. Newton's first law
B. Newton's third law
C. Newton's second law
D. all of them
6 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
7 A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about
A. 80 m
B. 20 m
C. 160 m
D. 40 m
8 Change in momentum is one second called.
A. Impulse
B. Force
C. Energy
D. Work
9 The distance covered by a body in unit time is called.
A. Displacement
B. speed
C. Velocity
D. Both B and C
10 A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of:
A. 0.5 m/sec2
B. 5 m/sec2
C. 1.5 m/sec2
D. 9.8 m/sec2

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