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 magnitude of the displacement is a line from initial position to final position which is

Question # 2

The effect of applying a force on a moving body is to change

Question # 3

A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

Question # 4

Newton published laws of motion in his famous book "principia" in

Question # 5

Tick the conservation force:

Question # 6

A projectile on its path gets divided into two pieces at its highest point. Which is true?

Question # 7

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

Question # 8

The decrease in velocity per unit time is called

Question # 9

One KWh is equal to:

Question # 10

The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:

Question # 11

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:

Question # 12

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 # 13

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

Question # 14

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

Question # 15

The distance covered by a body in unit time is called.

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The time of flight of a projectile motion equal to
A. half of the time to reach maximum height
B. twice the time to reach maximum height
C. one fourth of time to reach maximum height
D. time to reach maximum height
2 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
3 If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have
A. uniform deceleration
B. uniform negative acceleration
C. average acceleration
D. uniform positive acceleration
4 A body walks to his school at a distance of 6 km with a speed of 2.5 km/h and walks back with a constant speed of 5 km/h. His average speed for round trip expressed in km/h is
A. 24/13
B. 10/3
C. 3
D. 4,8
5 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
6 An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:
A. 100 m/sec
B. 140 m/sec
C. 1960 m/sec
D. 196 m/sec
7 The motion in a plane is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension
8 A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when
A. Elevator is stationary
B. Elevator cable breaks and it falls freely towards earth
C. Elevator accelerates downwards
D. Elevator accelerates upward
9 Essential characteristic of equilibrium is
A. Momentum equal to zero
B. Acceleration equal to zero
C. Kinetic energy equal to zero
D. Velocity equal to zero
10 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

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