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

If m is the mass of the gases ejected per second with velocity v relative to the rocket of mass M, then the acceleration of rocket is

Question # 2

The direction of the acceleration is the same as that of

Question # 3

A the top of the trajectory of a projectile, the directions of its velocity and acceleration are

Question # 4

A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?

Question # 5

Angular momentum

Question # 6

A car travels first half distance between two places with a speed of 30 km/h and remaining half with a speed of 50 km/h. The average speed of the car is

Question # 7

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 # 8

The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:

Question # 9

A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be:

Question # 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)

Question # 11

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

Question # 12

Inertia mass and gravitational mass are

Question # 13

The decrease in velocity per unit time is called

Question # 14

A typical rocket consists of fuel

Question # 15

The shortest distance between two points directed from its initial point to final point is called:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The short distance between two points direction from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
2 The entity which measures the quantity of motion in a body is called
A. force
B. energy
C. momentum
D. power
3 Linear momentum is a
A. fixed quantity
B. constant quantity
C. scalar quantity
D. vector quantity
4 Root out the conventional source of energy:
A. Energy from blomass
B. hydroelectric energy
C. Geothermal energy
D. None of these
5 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
6 When a body is moving on a surface, the force of friction is called
A. Static friction
B. Dynamic friction
C. Limiting friction
D. Rolling friction
7 If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of
A. 20 m
B. 400 m
C. 1440 m
D. 2880 m
8 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
9 The area under line velocity-time graph is numerically equal to the
A. speed of the body
B. acceleration of the body
C. distance covered by the body
D. none of them
10 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
A. m (1 - a/g)
B. m (1 + a/g)
C. m
D. Zero

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