ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 3 Motion and Force

Try The 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 railway engine (mass 104kg) is moving with a speed of 73 km/h. The force which should be applied to bring it to rest over a distance of 20 m is

Question # 2

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

Question # 3

The velocity of a projectile is maximum

Question # 4

A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:

Question # 5

Acceleration of a body is negative if the velocity of the body is

Question # 6

If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)

Question # 7

A ball of mass m moving with uniform speed collides elastically with another stationary ball. The incident ball will lose maximum kinetic energy when mass of the stationary ball is

Question # 8

Linear momentum is a

Question # 9

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

Question # 10

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 # 11

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

Question # 12

An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then

Question # 13

The mass of a body measured by a physical balance in a lift at rest is found to be m, if the lift is going up with an acceleration a, its mass will be measured as

Question # 14

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

Question # 15

The discuss used by athlete has a mass of 1 kg, its weight in newton is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 During the upward motion of the projectile, the vertical component of velocity:
A. Decreases
B. Increases
C. Remains constant
D. None of these
2 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
3 A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot files at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to
A. 12 s
B. 8 s
C. 15 s
D. 10 s
4 The slopes of the tangent at any point on the curve gives the value of the
A. average velocity at that point
B. instantaneous velocity at that point
C. average acceleration at that point
D. instantaneous acceleration at that point
5 The projectile motion is composed of
A. horizontal motion only
B. vertical motion only
C. horizontal and vertical motion
D. none of them
6
Swimming becomes possible because of______law of motion:
A. First
B. Second
C. Third
D. None of these
7 Change in momentum is one second is called:
A. Impulse
B. Force
C. Energy
D. Work
8 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
9 Which of the following four statements is false?
A. A body can have zero velocity and still be accelerated
B. A body can have a constant velocity and still have a varying speed
C. A body can have a constant speed and still have a varying velocity
D. The direction of the velocity of a body can change when its acceleration is constant
10 A man sitting in a bus travelling in a direction from west to east with a speed of 40 km/h observes that the rain drops are falling vertically down. To the another man standing on ground the rain will appear
A. To fall vertically down
B. To fall at an angle going from west to east
C. To fall at an angle going from east to west
D. The information given is insufficient to decide the direction of rain

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