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

The motion in a plane is the motion in

Question # 2

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

Question # 3

For a moving body, at any instant of time

Question # 4

The collision in which KE is conserved but momentum is not conserved is called:

Question # 5

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

Question # 6

A body moving with uniform velocity has

Question # 7

The motion of a projectile is

Question # 8

The velocity of a body at any instant of its motion is known as

Question # 9

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 # 10

The direction of the acceleration is the same as that of

Question # 11

Which quantity has the same dimension as that of impulse?

Question # 12

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 # 13

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

Question # 14

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

Question # 15

An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Velocity is a
A. scalar quantity
B. vector quantity
C. constant quantity
D. none of them
2 The direction of velocity is along the direction of
A. distance
B. displacement
C. acceleration
D. all of them
3 Unit of impulse in
A. Newton
B. Kg m
C. Kg m/s
D. Joule
4 A body of weight 1 N has a kinetic energy of 1 joule when its speed is:
A. 1.46 m sec-1
B. 2.44 m sec-1
C. 3.42 m sec-1
D. 4.43 m sec-1
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 If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:
A. Force
B. Energy
C. work
D. impulse
7 Ethanol (alcohol) as a type of:
A. Electric fuel
B. Bio fuel
C. Nuclear fuel
D. None of these
8 The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to
A. zero
B. maximum
C. minimum
D. infinity
9 In the above figures, tell which set is graphs shows that a body is moving uniform velocity:
A. (i) and (ii)
B. (ii) and (iii)
C. (i) and (iii)
D. (ii) and (iv)
10 Which quantity has the same units as impulse
A. force
B. work
C. linear momentum
D. acceleration

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