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 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

Question # 2

One KWh is equal to:

Question # 3

The SI units of momentum is

Question # 4

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

Question # 5

The collision in which KE is conserved but momentum is not conserved is called:

Question # 6

Change in momentum is one second is called:

Question # 7

When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is

Question # 8

The expression F x t is called impulse if the time 't' is

Question # 9

A body of mass 5 kg is acted upon by a total change n momentum will be:

Question # 10

When a force is applied on a body, several effects are possible Which of the following effect could not occur?

Question # 11

Unit of impulse in

Question # 12

For maximum linear distance of travel, a projectile must be fired at an angle of

Question # 13

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

Question # 14

If the water falls from a dam into a turbine wheel 19.6 m below, then the velocity of water at the turbine, is (Take g=9.8 m/s2)

Question # 15

The dimension of linear inertia is:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The entity which measures the quantity of motion in a body is called
A. force
B. energy
C. momentum
D. power
2 The SI units of momentum is
A. kg m s-2
B. kg ms
C. kg m s2
D. N-s
3 Swimming becomes possible because of______law of motion.
A. First
B. Second
C. Third
D. None of these
4 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
5 If the acceleration of a body is negative, then slope of the velocity-time graph will be:
A. Zero
B. Positive
C. Negative
D. Infinity
6 A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is
A. 0.15 x 10-3Ns
B. 0.98 x 10-3Ns
C. 1.5 x 10-3Ns
D. 2.5 x 10-3Ns
7 The consumption source if energy is:
A. Energy from blomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
8 The horizontal range of projectile, at a certain place, depends upon
A. the mass of the projectile
B. velocity of projection
C. angle of projection
D. angle as well as velocity of projection
9 Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?
A. The faster one
B. Depends on their mass
C. The slower one
D. Both will reach simultaneously
10 Body which falls freely under gravity provides good example of motion under:
A. Uniform acceleration
B. Non-uniform acceleration
C. Uniform velocity
D. None of these

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