
physics chapter 2
Quiz by Seemita Agarwal
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. What is the SI unit of Work?
1joule = ________ erg.
Q3. Which of the followings is an example of work done againstforce?
Q4. What is the unit of energy in SI system?
Q5.1 Horse Power (HP) = _________ Watt
Q6. If a person walks on horizontal road with a suitcase onhis hand then the work done is zero.
Q7. An object of mass 200 g moving with velocity 50 cm/s. Whatis its kinetic energy?
Q8. A machine does a work of 100 joule in 20 second. What isits power?
Q9. Joule/second is related to –
Q10. A particle is thrown upward with some kinetic energy.What happened to its kinetic energy atthe highest point or height it reaches.
Q11. Due to application of 5 N force an object moves 10 meteralong perpendicular direction of theforce. What amount work is done?
Q12. Which of the following is equal with Newton-meter?
Q13. Work done in raising a box on to a platform depends on____.
Q14. What is the work done by the centripetal force on theobject moving in circular motion?
Q15. With what velocity a student of mass 60 kg run so thathis K.E. becomes 270 JÂ Â
Q16. How much power is required to lift a body of mass 100 kgto a height of 60 m in 1Â minute? Take g= 9.8m/s2
 Q17. The Bullet ThatHas Fired from a Gun Can Pierce a Target Due to Its __________?Â
Q18. A Person Holds a Bucket by Applying a 10n Force. He ThenMoves a Horizontal Distance of 5m andClimbs up a Vertical Distance of 10m. Find out the Total Work Done by him?
Q19. When the displacement along the opposite direction of theforce. Then the work is said to be__________
Q20. Ocean thermal energy is due to
Q21. In an electric cell while in use, the change in energy is from:
Q22. In a battery, chemical energy is converted into
Q23. Running water possesses
Q24. Water stored in dam has
Q 25. Light energy to electrical energy
Q26. Total mechanical energy is equal to
Q27. One joule of work is done whenÂ
Q28. Work done on a body is a _________ quantity
Q29. A body of mass 50 kg has a momentum of 3000 kg m/s Calculate its K.E. and velocity.
Q30. When mass and velocity of the body is doubled then the K.E. will ____