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 body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:

Question # 2

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 # 3

The consumption of energy by a 1000 watt heter in half an hour is:

Question # 4

A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:

Question # 5

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

Question # 6

The expression F x t is called impulse if the time 't' is

Question # 7

If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have

Question # 8

When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.

Question # 9

Acceleration produced in a body by the force varies

Question # 10

Linear momentum is a

Question # 11

A boat of mass 40 kg is at rest, A dog of mass 4 kg moves in the boat with a velocity of 10 m/s. What is the velocity of boat?

Question # 12

If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Which of the following statements for an object in equilibrium is not true?
A. The object must be at rest
B. The object can be at rest
C. The object is moving at constant speed
D. The acceleration of the object is zero
2 Unit of impulse in
A. Newton
B. Kg m
C. Kg m/s
D. Joule
3 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
4 Dimensions of velocity are
A. [L]
B. [T]
C. [LT-1]
D. [LT-2]
5 A lift is descending at a constant speed V. A passenger in the lift drops a coin. The acceleration of the coin towards the floor will be
A. Zero
B. g
C. -g
D. V + g
6 For a fixed force, larger is the mass of a body the
A. greater is its acceleration
B. smaller is its acceleration
C. smaller is its weight
D. zero is its acceleration
7 Root out of the conventional source of energy:
A. Energy from biomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
8 Acceleration of a body at any particular instant during its motion is known as
A. average acceleration
B. uniform acceleration
C. instantaneous acceleration
D. all of them
9 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
10 The discuss used by athlete has a mass of 1 kg, its weight in newton is
A. 9.8 N
B. 80 N
C. 98 N
D. 100 N

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