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 product of force and time is called change in:

Question # 2

The short distance between two points direction from its initial point to final point is called:

Question # 3

When a body is moving on a surface, the force of friction is called

Question # 4

Force is a:

Question # 5

When a shell explodes in mid-air, its fragments fly off in

Question # 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:

Question # 7

To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined

Question # 8

A body is thrown from a height h with speed u, it hits the ground with speed V

Question # 9

A ball is dropped from a height of 4.2 meters. To what height it will rise if there is no loss of KE after rebounding?

Question # 10

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

Question # 11

Slope of velocity-time graph represents:

Question # 12

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

Question # 13

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

Question # 14

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

Question # 15

A dirty carpet is to be cleaned by heating. This is in according with______law of motion.

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Earth is considered to be
A. a non-inertial frame
B. an inertial frame
C. an accelerated frame
D. none of the above
2 The projectile attains maximum horizontal range when it is projected at an angle of
A. 30°
B. 45°
C. 60°
D. 75°
3 A motorist travels A to B at a speed at 40 km/h and returns at speed of 60km/h. His average speed will be
A. 40 km/h
B. 48 km/h
C. 50 km/h
D. 60 km/h
4 In the expression F x t, the force F is
A. total force
B. instantaneous force
C. average force
D. all of them
5 Acceleration produced in a body by the force varies
A. inversely as the applied force
B. directly as the applied force
C. directly as the mass of the body
D. none of them
6 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
7 A the top of the trajectory of a projectile, the directions of its velocity and acceleration are
A. Perpendicular to each other
B. Parallel to each other
C. Inclined to each other at an angle of 45°
D. Anitparallel to each other
8 The second law gives the relationship between
A. mass and velocity
B. force and acceleration
C. velocity and acceleration
D. mass and weight
9 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
10 Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?
A. Their range will be same
B. Their maximum height will be same
C. Their landing velocity will be same
D. Their time of flight will be same

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