# Education In Pakistan

## Physics Important Questions / Mcqs Paper

Physics  Important Questions / Mcqs Paper

 When force is parallel to displacement then work will be a) Maximum b) Minimum c) Zero D None 2. If body of mass 3 kg is raised through 2 m then work done will be a) 38.2 j b) 392.1 j c) 39.2 j d) 3.92 j 3. Balance float is a) Stationary part b) Moveable part c) Both can be d) None of these 4. Which of the following is greater unit of power a) Watt b) KW c) hp d) None 5. Proton, neutron ,electron and α particles have same momentum which of the following have greater K.E a) Proton b) Electron c) Neutron d) Α particle 6. Slope of work time graph is a) Displacement b) Acceleration c) Power d) Energy 7. Work done by variable force is determined by dividing a) Force b) Displacement c) Both d) None 8. Escape velocity for grater bodies is a) Also greater b) Smaller c) Not effected by size d) None of these 9. Highest value of escape velocity in solar system is for planet a) Earth b) Jupiter c) Mars d) Moon 10. For frictional force work is always a) Positive b) Negative c) Both can be d) None 11. Which of the following is not conservative force a) Electric b) Magnetic c) friction d) Gravitational 12. Consumption of energy by a 60 W bulb in 2 second…….j a) 120 b) 60 c) 30 d) 0.02 13. When two protons are brought together a) P.E increases b) K.E increases c) Both decreases d) Both increases 14. Work done on a body is equal to change in its P.E in a) Conservative field b) Non conservative c) Both d) None of these 15. Nms-1 is equal to a) Joule b) Watt c) Both d) None

 16 The work done by which force is always zero a) Electric force b) Magnetic force c) Both d) None 17. Energy from biomass is a) Renewable b) Non renewable c) Both can be d) None of these 18. The source of geothermal energy is a) Sun b) Earth c) Moon d) All true 19. A body has more power then it means it has ability to do a) More work b) Less work c) Moth true d) None of these 20. In particle physics …… is measured in eV a) Work b) Energy c) both d) 21. Law of gravity becomes in valid at a) Infinite distance b) Small distance c) Point masses d) Both b & c 22. For absolute potential energy reference point is a) Surface of earth b) Infinity c) Both can be d) None of these 23. Reference point is necessary to measure a) K.E b) P.E c) Both d) None 24. If air friction is counted then law of conservation of energy is a) Valid b) Invalid c) Both possible d) 25. Bio fuel is replacement of a) Bio gas b) Natural gas c) Gasoline d) None 26. Gravity of moon affects a) Water only b) The whole surface of earth c) Liquid things only d) All possible 27. Centripetal force is always ……to displacement a) Anti parallel b) Parallel c) Perpendicular d) None of these 28. Maximum angle between work and displacement in work done is a) 0 b) 90 c) 180 d) 360 29. At infinite distance gravitational P.E becomes a) Zero b) Maximum c) None of these d) None of these 30. A body has absolute P.E is equal to E,the minimum energy required to send it at infinity is a) zero b) ‘E/2 c) E d) E/4
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