ECAT Pre Computer Science Chapter 3 MCQ Test With Answer

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

Try The MCQ's Test For ECAT Physics Chapter 3 Motion and Force

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ECAT Physics Chapter 3 Motion and Force

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Question # 1

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

Question # 2

A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after

Question # 3

If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have

Question # 4

A motorist travels A to B at a speed at 40 km/h and returns at speed of 60km/h. His average speed will be

Question # 5

The three equation of motions are useful only for

Question # 6

A ball is dropped vertically down and it takes time t to reach the ground. At time t/2

Question # 7

A typical rocket ejects the burnt gases at speeds over

Question # 8

Dimensions of velocity are

Question # 9

Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is

Question # 10

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

Question # 11

By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second ( g=10m/s2)

Question # 12

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/ss)

Question # 13

When two protons are brought closer potential energy of both of them:

Question # 14

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

Question # 15

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The discuss used by athlete has a mass of 1 kg, its weight in newton is
A. 9.8 N
B. 80 N
C. 98 N
D. 100 N
2 A change in position of a body from its initial position to its final position is known as
A. relative motion
B. displacement
C. distance
D. acceleration
3 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?
A. 150 m
B. 250 m
C. 350 m
D. 400 m
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 Change in momentum is one second is called:
A. Impulse
B. Force
C. Energy
D. Work
6 Newton published laws of motion in his famous book "principia" in
A. 1867
B. 1667
C. 1676
D. 1687
7 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)
A. 9.8 m/s
B. 19.6 m/s
C. 39.2 m/s
D. 98.0 m/s
8 When we consider the average velocity of a body, then the body is moving in
A. straight line
B. curved path
C. may be in a straight or curved path
D. none of them
9 If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:
A. Force
B. Energy
C. work
D. impulse
10 When a person jumps off the ground, the reaction force of the ground is
A. greater than the weight of the person
B. smaller than the weight of the person
C. equal to the weight of the person
D. zero

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