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

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

Question # 2

A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be

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

Root out the conventional source of energy:

Question # 5

Which one of the following is dimensionless:

Question # 6

The direction of velocity is along the direction of

Question # 7

If a train traveling at 72 kmph is to be brought to rest in a distance of 200 meters then its retardation should be

Question # 8

Laws of motion are not valid in a system which is

Question # 9

Graphs which are used to illustrate the variation of velocity of an object with time are called

Question # 10

A cold soft drink is kept on the balance. When the cap is opened, then the weight

Question # 11

In equation F=ma, then mass 'm' is

Question # 12

The decrease in velocity per unit time is called

Question # 13

One KWh is equal to:

Question # 14

The second law gives the relationship between

Question # 15

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

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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 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?
A. 0.1 m/s
B. 10 m/s
C. 1 m/s
D. 0.01 m/s
3 A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
4 Laws of motion are not valid in a system which is
A. inertial
B. non-interial
C. at rest
D. moving with uniform velocity
5 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
6 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
7 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
8 The path followed by the projectile is known as:
A. Cycle
B. Hyperbola
C. Trajectory
D. Route
9 Range of a projectile is R, when the angle of projection is 30° . Then, the value of the other angle of projection for the same range, is
A. 45°
B. 60°
C. 50°
D. 40°
10 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these

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