Punjab 9th Class Physics Model Paper 5 MCQs Test Online

Question 1 of 36

Physics

1. The height of geostationary satellites with respect to Earth is:

1.36,300 km

2.42,300 km

3.30,300 km

4.40, 300 km

Question 1 of 36

Question 2 of 36

2. 10 joules work is done by a machine in 5 seconds. Its power will be:

1.2W

2.10W

3.25W

4.50W

Question 2 of 36

Question 3 of 36

3. Newton’s law of gravitation resembles with:

1.1st law of motion

2.law of gravitation

3.3rd law of motion

4.2nd law of motion

Question 3 of 36

Question 4 of 36

4. The work will be zero, if angle between force and distance is:

1.90°

2.45°

3.180°

4.60°

Question 4 of 36

Question 5 of 36

5. Earth’s gravitational force of attraction vanishes at:

1.42300 km

2. 6400 km

3.1000 km

4.infinity

Question 5 of 36

Question 6 of 36

6. If the velocity of a body becomes three times greater, than kinetic energy will be:

1.six times

2.four times

3.nine times

4.three times

Question 6 of 36

Question 7 of 36

7. The value of “g” on Mars surface is:

1.8.87 ms⁻²

2.10 ms⁻²

3.3.73ms⁻²

4.1.62 ms⁻²

Question 7 of 36

Question 8 of 36

8. The value of “g” on Moon’s surface is:

1.1.6 cms⁻²

2.1.6 ms⁻¹

3.1.6 kms⁻¹

4.1.6 ms⁻²

Question 8 of 36

Question 9 of 36

9. The centripetal acceleration is inversely proportional to:

1.mass and radius

2.radius

3.mass

4.velocity

Question 9 of 36

Question 10 of 36

10. The energy stored in coal is:

1.Kinetic energy

2.Chemical energy

3.Nuclear energy

4.Heat energy

Question 10 of 36

Question 11 of 36

11. Everybody in the universe attracts other with a force which is:

1.directly proportional to the product of their masses

2.directly proportional to the square of the distance between them

3.directly proportional to the distance between them

4.inversely proportional to the product of their masses

Question 11 of 36

Question 12 of 36

12. The moon completes its one revolution around the Earth in:

1.31.3 days

2.25.3 days

3.27.3 days

4.29.3 days

Question 12 of 36

Question 13 of 36

13. The moon is nearly ________ away from the Earth.

1.3,800 km

2.3,80,000 km

3.37, 0000 km

4.37, 000 km

Question 13 of 36

Question 14 of 36

14. The work down in lifting a brick of mass 2kg through a height of 5m above ground will be:

1.10 J

2.100 J

3.2.5 J

4.50 J

Question 14 of 36

Question 15 of 36

15. The velocity of geostationary satellites with respect to Earth is:

1.zero

2.2v₀

3.v₀

4.½ v₀

Question 15 of 36

Question 16 of 36

16. The orbital velocity of a satellite revolving at height ‘h’ above the surface of Earth is given by:

1.V₀ = √(gh(2R+h))

2.None of these

3.V₀ = 2√(gh(R+h))

4.V₀ = √(gh(R+h))

Question 16 of 36

Question 17 of 36

17. The velocity of geostationary satellites with respect to Earth is:

1.5 kmh⁻¹

2.zero

3.15 kmh⁻¹

4.10 kmh⁻¹

Question 17 of 36

Question 18 of 36

18. Which one of the following converts light energy into electrical energy?

1.Electric bulb

2.Electric cell

3.Electric generator

4.Photocell

Question 18 of 36

Question 19 of 36

19. The orbit speed of a low orbit satellite is:

1.8000 ms⁻¹

2.8 ms⁻¹

3.zero

4.800 ms⁻¹

Question 19 of 36

Question 20 of 36

20. In Einstein’s mass-energy equation, ‘c’ is the:

1. Speed of Sound

2.Speed of electron

3.Speed of light

4. Speed of earth

Question 20 of 36

Question 21 of 36

21. The value of g on Moon’s surface is 1.6 ms⁻². What will be the weight of a 10 kg body on the surface of a Moon?

1.16 N

2.100 N

3.10 N

4.160 N

Question 21 of 36

Question 22 of 36

22. Kinetic energy is directly proportional to the velocity of a body:

1.four times

2.square

3.three times

4.two times

Question 22 of 36

Question 23 of 36

23. Rate of doing work is called:

1.momentum

2.torque

3.power

4.energy

Question 23 of 36

Question 24 of 36

24. Near the surface of Earth, the gravitational field strength is:

1.10Nkg⁻¹

2.1000 Nkg⁻¹

3.zero

4.100 Nkg⁻¹

Question 24 of 36

Question 25 of 36

25. The value of ‘g’ at a height one Earth’s radius above the surface of the earth is:

1.½g

2.1/4g

3.2g

4.1/3g

Question 25 of 36

Question 26 of 36

26. The energy stored in a dam is:

1.kinetic energy

2.Potential energy

3.Thermal energy

4.Electric energy

Question 26 of 36

Question 27 of 36

27. The idea of gravity was put up first by:

1.Hooke

2.Isaac Newton

3.Einstein

4.Galileo

Question 27 of 36

Question 28 of 36

28. A force which is inversely proportional to the square of the distance between the centers of bodies is:

1.gravitational force

2.centrifugal force

3.centripetal force

4.frictional force

Question 28 of 36

Question 29 of 36

29. Near the surface of Earth, the gravitational field strength is:

1.8 Nkg⁻¹

2.5 Nkg⁻¹

3.6 Nkg⁻¹

4.10 Nkg⁻¹

Question 29 of 36

Question 30 of 36

30. The kinetic energy of a body of mass 2kg is 25J. Its speed is:

1.12.5 ms⁻¹

2.5 ms⁻¹

3.50 ms⁻¹

4.25 ms⁻¹

Question 30 of 36

Question 31 of 36

31. The value of ‘g’ increases with the __________.

1.9.8 ms⁻²

2.10 ms⁻²

3.25.94 ms⁻²

4.1.62 ms⁻²

Question 31 of 36

Question 32 of 36

32. Value of ‘g’ increases with the _________.

1.decrease in altitude

2.increase in altitude

3.increases in mass of a body

4.increase in weight of body

Question 32 of 36

Question 33 of 36

33. The SI unit of work is:

1.Pascal (Pa)

2.Watt (W)

3.Joule (J)

4.Newton (N)

Question 33 of 36

Question 34 of 36

34. The mass of Earth is:

1.6 x 10¹⁴ kg

2.6 x 10⁴ kg

3.6 x 10²⁴kg

4.6 x 10²⁴ N

Question 34 of 36

Question 35 of 36

35. Value of gravitational acceleration at 1000 km above the surface of earth is:

1.37.3 ms⁻¹

2.9.8 ms⁻¹

3.3.7 ms⁻¹

4.7.3 ms⁻¹

Question 35 of 36

Question 36 of 36

36. Centripetal force is directly proportional to:

1.m²

2.v²

3.v

4.r

Question 36 of 36

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