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

Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s2

Question # 2

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

Question # 3

Essential characteristic of equilibrium is

Question # 4

The second law gives the relationship between

Question # 5

In above figures, tell which set of graphs shows that a body is moving with uniform velocity:

Question # 6

Laws of motion are not valid in a system which is

Question # 7

When a bicycle is in motion, the frictional forces exerted by the ground are

Question # 8

Ethanol (alcohol) is a type of:

Question # 9

A rocket carries its own fuel in the form of

Question # 10

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

Question # 11

The artillery shells travel along parabolic paths under the influence of

Question # 12

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

Question # 13

A typical rocket consumes about

Question # 14

When a horse pulls a cart, the force that makes the horse run forward is the force exerted by

Question # 15

A body whose momentum is constant must have constant

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?
A. 400 m
B. 300 m
C. 200 m
D. 100 m
2 The consumption of energy by a 1000 watt heter in half an hour is:
A. 5 Kwh
B. 0.5 Kwh
C. 2.5 Kwh
D. 3.2 Kwh
3 If a ball comes back to its starting point after bouncing off the wall several times, then its
A. total displacement is zero
B. average velocity is zero
C. none of them
D. both of them
4 When we consider the average velocity of a body, then the body is moving in
A. straight line
B. curved path
C. may be in a straight or curved path
D. none of them
5 Biomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
6 If the objects of different masses move with the same velocity, then it is more difficult to stop the
A. lighter of the two
B. massive of the two
C. any one of them
D. both of them
7 A ball of mass m moving with uniform speed collides elastically with another stationary ball. The incident ball will lose maximum kinetic energy when mass of the stationary ball is
A. m
B. 2 m
C. 4 m
D. Infinity
8 Angular momentum
A. Scalar
B. Axial vector
C. Polar vector
D. At 45° angle
9 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
10 An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow
A. a circular path
B. a straight line
C. a hyperbola
D. a parabola

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