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 three equation of motions are useful only for

Question # 2

If the velocity time graph is a straight line parallel to the time-axis, then it means:

Question # 3

If a ball comes back to its starting point after bouncing off the wall several times, then its

Question # 4

The velocity of a projectile is maximum

Question # 5

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

Question # 6

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?

Question # 7

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 # 8

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

Question # 9

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

Question # 10

Inertia mass and gravitational mass are

Question # 11

At the top of the trajectory of a projectile the acceleration is

Question # 12

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 # 13

Acceleration of a body at any particular instant during its motion is known as

Question # 14

A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is

Question # 15

The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90° with the force of the smaller magnitude, then their magnitudes are

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1
Swimming becomes possible because of______law of motion:
A. First
B. Second
C. Third
D. None of these
2 At the top of the trajectory of a projectile the acceleration is
A. The maximum
B. The minimum
C. Zero
D. g
3 An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow
A. a circular path
B. a straight line
C. a hyperbola
D. a parabola
4 A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is
A. 2100 m/s2
B. 1400 m/s2
C. 700 m/s2
D. 400 m/s2
5 The time rate of change of displacement is called:
A. Time
B. Acceleration
C. Speed
D. Velocity
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 A dirty carpet is to be cleaned by heating. This is in according with______law of motion.
A. First
B. Second
C. Third
D. None of these
8 The entity which measures the quantity of motion in a body is called
A. force
B. energy
C. momentum
D. power
9 Two bodies of masses 1 kg and 5 kg are dropped gently form the top of a tower. A a point 20 cm from the ground both the bodies will have the same
A. Momentum
B. Kinetic energy
C. Velocity
D. Total energy
10 A body of mass 1.0 kg is falling with an acceleration of 10 m/s2. Its apparent weight will be (g=10 m/s2)
A. 1.0 kg wt
B. 2.0 kg wt
C. 0.5 kg wt
D. Zero

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