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

A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when

Question # 2

Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is

Question # 3

A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is

Question # 4

Acceleration of a body is negative if the velocity of the body is

Question # 5


Swimming becomes possible because of______law of motion:

Question # 6

The motion of a body in a straight line is the motion in

Question # 7

When two protons are brought closer potential energy of both of them:

Question # 8

The projectile motion is composed of

Question # 9

When two protons are brought closer potential energy of both of them:

Question # 10

A ball is dropped from a height of 4.2 meters. To what height it will rise if there is no loss of KE after rebounding?

Question # 11

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

Question # 12

The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:

Question # 13

A particle of mass 0.5 g moving along x-axis is located of x1= 15 m at t1= 5s and x2= 33 m at t2= 13s its average velocity is

Question # 14

If the values of instantaneous and average velocities are equal, the body is said to be moving with

Question # 15

Rate of change of momentum is called

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 Blomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
3 The velocity of a body at any instant of its motion is known as
A. average velocity
B. instantaneous velocity
C. uniform velocity
D. none of them
4 The area under line velocity-time graph is numerically equal to the
A. speed of the body
B. acceleration of the body
C. distance covered by the body
D. none of them
5 Laws of motion are not valid in a system which is
A. inertial
B. non-interial
C. at rest
D. moving with uniform velocity
6 If an iron ball and a wooden ball of the same radius was released from a height 'h' in vacuum, then time taken by both of them to reach ground will be
A. Unequal
B. Exactly equal
C. Roughly equal
D. Zero
7 A man sitting in a bus travelling in a direction from west to east with a speed of 40 km/h observes that the rain drops are falling vertically down. To the another man standing on ground the rain will appear
A. To fall vertically down
B. To fall at an angle going from west to east
C. To fall at an angle going from east to west
D. The information given is insufficient to decide the direction of rain
8 If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)
A. mg
B. m (g+a)
C. m (g - a)
D. 0
9 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
A. 17 m/s
B. 33 m/s
C. 17.5 m/s
D. none
10 Inertia mass and gravitational mass are
A. opposite
B. identical
C. identical when there is no friction
D. all of them

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