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

The consumption of energy by a 1000 watt heter in half an hour is:

Question # 2

A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be

Question # 3

When we consider the average velocity of a body, then the body is moving in

Question # 4

Linear momentum is a

Question # 5

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

Question # 6

The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?

Question # 7

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Question # 8

Slope of velocity time graph represents:

Question # 9

If the values of instantaneous and average velocities are equal, the body is said to be moving with

Question # 10

Which one of the following is dimensionless:

Question # 11

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 12

The direction of the linear momentum is the direction of

Question # 13

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 # 14

Which of the following is not a projectile

Question # 15

A body is thrown from a height h with speed u, it hits the ground with speed V

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Acceleration in a body is always produced in the directin of:
A. Velocity
B. Weight
C. Force
D. Botha B and C
2 The collision in which KE is conserved but momentum is not conserved is called:
A. Elastic collision
B. Inelastic collision
C. any these
D. None of these
3 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:
A. 2 Kg
B. 3 Kg
C. 4 Kg
D. 8 Kg
4 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
A. 3, 15
B. 4, 14
C. 5, 13
D. 6, 12
5 The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?
A. 400 m
B. 300 m
C. 200 m
D. 100 m
6 Blomass includes:
A. Crop residue
B. Natural vegetation
C. Animal dung
D. All of these
7 The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is
A. 500 ms-1
B. 1000 ms-1
C. 250 ms-1
D. Zero
8 The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
9 If a ball comes back to its starting point after bouncing off the wall several times, then its
A. total displacement is zero
B. average velocity is zero
C. none of them
D. both of them
10 Ethanol (alcohol) as a type of:
A. Electric fuel
B. Bio fuel
C. Nuclear fuel
D. None of these

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