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

Ethanol (alcohol) as a type of:

Question # 2

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

Question # 3

Velocity of a body changes if

Question # 4

Swimming becomes possible because of______law of motion.

Question # 5

When a shell explodes in mid-air, its fragments fly off in

Question # 6

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

Question # 7

A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?

Question # 8

A non-inertial frame of reference is that frame of reference in which

Question # 9

The second law gives the relationship between

Question # 10

For maximum linear distance of travel, a projectile must be fired at an angle of

Question # 11

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

Question # 12

One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:

Question # 13

The product of force and time is called

Question # 14

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 # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The decrease in velocity per unit time is called
A. deceleration
B. acceleration
C. uniform acceleration
D. variable acceleration
2 The collision in which KE is conserved but momentum is not conserved is called:
A. Elastic collision
B. Inelastic collision
C. any these
D. None of these
3 Which one of the following is dimensionless.
A. Acceleration
B. Velocity
C. Density
D. Angle
4 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:
A. 2 Kg
B. 3 Kg
C. 4 Kg
D. 8 Kg
5 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
6 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
A. 120 x 10.8 N
B. 180 N
C. 720 N
D. 360 N
7 The mass of the object is a quantities measure of its
A. speed
B. velocity
C. acceleration
D. inertia
8 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
9 A dirty carpet is to be cleaned by heating. This is in according with______law of motion.
A. First
B. Second
C. Third
D. None of these
10 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

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