# Physics Karachi Board XI [Work Power and Energy] Online Test 2

## Physics XI Karachi Board [Work Power and Energy] MCQS Online Test - 2

Physics Aptitude Test. 21 More Questions from Chapter 07 Work Power and Energy.
Q1. An electric lift uses 500 Joules of energy to lift the load in 2 seconds. Its power is
Q2. A machine of power 10 watts operates for a period of 2 minutes. The work done by its is
Q3. 1 Watt = _____________
Q4. The S1 unit of energy “Joule” and British thermal unit (BTU) are related by.
Q5. The breaking up of heavy nucleus into two intermediate nuclei, with the release of energy is called
Q6. The energy released in the process of fission and fusion is called
Q7. A bullet is fired from a gun moved up in air then is total P.E at the maximum height is
Q8. Gravitational interaction between the earth and the moon is the cause of
Q9. The kinetic energy of a moving at speed of 100 m/s is
Q10. If the velocity of a body is doubled, its kinetic energy becomes
Q11. If the mass of a body is reduced to half, its kinetic energy becomes
Q12. The kinetic energy of a body of mass 500 ams moving with a velocity of 10 m/s is
Q13. Nuclear energy can be released in the process of
Q14. Kinetic energy is the energy of body by virtue of its
Q15. If the velocity of a body becomes half then the K.E becomes
Q16. A bullet is fired from a gun moved up in air then its total K.E. at the maximum height is
Q17. The energy stored in the spring of a watch Is
Q18. The work needed to move the body from the Earth’s surface to an in finite distance is called
Q19. The energy possessed by body due to its position is called
Q20. When a body is raised to a certain height, the work done against the force of gravity is called its
Q21. Nuclear energy can be released in the process of
Status Bar