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 car moves for half of its time at 80 km/h and rest half of time at 40 km/h, The total distance covered is 60 km. What is the average speed of the car?

Question # 2

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 # 3

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

Question # 4

Slope of velocity-time graph represents:

Question # 5

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 # 6

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

Question # 7

The direction of velocity is along the direction of

Question # 8

One KWh is equal to:

Question # 9

The velocity given to a body to go out of the influence of earth's gravity is known as:

Question # 10

The time rate of change of displacement is called:

Question # 11

A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

Question # 12

Which quantity has the same units as impulse

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

Range of a projectile is R, when the angle of projection is 30° . Then, the value of the other angle of projection for the same range, is

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Change in momentum is one second called.
A. Impulse
B. Force
C. Energy
D. Work
2 Velocity of a body changes if
A. direction of the body changes
B. speed of the body changes
C. neither speed nor direction changes
D. either speed or direction changes
3 When body moves with increasing acceleration, its velocity time graph is a
A. straight line
B. horizontal straight line
C. vertical straight line
D. curve
4 When brakes are applied to a fast moving car, the passenger will be thrown:
A. Forward
B. Backward
C. Downward
D. none of these
5 Tick the conservative force:
A. tension in a string
B. Air resistance
C. Elastic spring force
D. Frictional force
6 A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be:
A. 10 m/sec2
B. 20 m/sec2
C. 30 m/sec2
D. Zero
7 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
8 Which quantity has the same units as impulse
A. force
B. work
C. linear momentum
D. acceleration
9 The projectile motion is composed of
A. horizontal motion only
B. vertical motion only
C. horizontal and vertical motion
D. none of them
10 When the total displacement is divided by total time taken, we get:
A. Velocity
B. Average speed
C. Average velocity
D. None of these

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