Online ECAT Test Preparation 2020 Physics Chapter No.4

Online ECAT Test Preparation 2020

Online ECAT test Preparation of ECAT Entry Test Session 2020. Here are more than 5000 Multiple Choice Questions collected from past entry test papers. Attempt all mcqs given below and give your feedback about this online quiz of ECAT Physics 2020.

Online ECAT Test Preparation Subjects

Here is collection of ECAT Physics MCQs for online preparation.

Keys:

1. c 11. b

2. d 12. b

3. c 13. b

4. c 14. d

5. d 15. d

6. a 16. a

7. b 17. b

8. c 18. a

9. d 19. d

10. c 20. c

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1.

The force which can do no work on the body on which it acts is

elastic force

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frictional force

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centripetal force

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gravitational force

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2.

kWm-2 is the unit of

power

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✖

Intensity

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Energy

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Energy per unit area

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✖

3.

The area under the curve of force-displacement graph represents

Force

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✖

Displacemetn

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✖

Work

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✖

Power

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✖

4.

If the direction of force is perpendicular to the direction of motion of body, then work done is

Minimum

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Maximum

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✖

Zero

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Infinity

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✖

5.

Which of the following pair has same dimensions?

work and power

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momentum and energy

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power and pressure

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work and torque

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✖

6.

Work done is maximum when the angle between force and displacement is

0°

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45°

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90°

✔

✖

180°

✔

✖

7.

A solar cell converts light energy into

heat energy

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✖

chemical energy

✔

✖

electrical energy

✔

✖

atomic energy

✔

✖

8.

7. If by some means, the diameter of earth increases to 4 times, the escape velocity will become/remain

Same

✔

✖

Double

✔

✖

Half

✔

✖

One Fourth

✔

✖

9.

The escape velocity can be determined by the relation

Vesc=gR

✔

✖

Vesc=2gR

✔

✖

Vesc=√gR

✔

✖

Vesc=√2gR

✔

✖

10.

Which one is renewable source of energy

coal

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natural gas

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✖

sunlight

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uranium

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✖

11.

As we move up a body above the surface of Earth, the change in potential energy will always be

negative

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positive

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Zero

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✖

infinity

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✖

12.

1 kWh is equal to

0.36 MJ

✔

✖

3.6 MJ

✔

✖

36 MJ

✔

✖

360 MJ

✔

✖

13.

Commercial unit of electrical energy is

kilowatt

✔

✖

kilowatt hour

✔

✖

joule

✔

✖

watt

✔

✖

This quiz has been created using the tool HTML Quiz Generator