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

During the upward motion of the projectile, the vertical component of velocity.

Question # 2

Biomass includes:

Question # 3

The dimension of linear inertia is:

Question # 4

Ethanol (alcohol) is a type of:

Question # 5

The slopes of the tangent at any point on the curve gives the value of the

Question # 6

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

Question # 7

In velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is

Question # 8

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

Question # 9

A mass of 5kg moves with an acceleration of 10m s-2force applied is

Question # 10

Rate of change of momentum is called

Question # 11

The decrease in velocity per unit time is called

Question # 12

Which one of the following is dimensionless:

Question # 13

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

Question # 14

A snooker ball moving with velocity V collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of second snooker ball is

Question # 15

One KWh is equal to:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 A rocket carries its own fuel in the form of
A. liquid only
B. liquid or solid
C. liquid and solid
D. liquid or solid and oxygen
3 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
4 A typical rocket ejects the burnt gases at speeds over
A. 400 ms-1
B. 40000m s-1
C. 40000 ms-1
D. 60000 ms-1
5 When a bicycle is in motion but not pedaled, the force of friction exerted by the ground on the two wheels is such that it acts
A. In the backward direction on the front wheel and in the forward direction on the rear wheel
B. In the forwards directions on the front wheel and in the backward direction on the rear wheel
C. In the forward direction on both the wheels
D. In the backward direction on both the wheels
6 The entity which measures the quantity of motion in a body is called
A. force
B. energy
C. momentum
D. power
7 Change in momentum is one second is called:
A. Impulse
B. Force
C. Energy
D. Work
8 Bodies which falls freely under gravity provides good example of motion under:
A. Uniform acceleration
B. Non-uniform acceleration
C. Uniform velocity
D. None of these
9 Distance covered by a freely falling body in 2 sec will be
A. 4.9 m
B. 19.6 m
C. 29.2 m
D. 44.1 m
10 A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after
A. 10 s
B. 20 s
C. 5 s
D. 40 s

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