9th Class Physics English Medium Online Test For Full Book With Answers

9th Class Physics English Medium Online Test For Full Book

Sr. # Questions Answers Choice
1 The unit of work or energy joule is equal to............... Newton metre Horsepower Watt metre Newton second
2 Which of the following is not renewable eergy soruce. Fossil fuels Hydroelectric energy Wind energy Solar energy
3 The magnitude of momentum of an object is doubled. the kinetic energy of the object will Double Increase to four times Reduce to one half Remain the same
4 The energy possessed by abody by virtue of its position is. Solar energy Chemical energy Potential energy Kinetic energy
5 If a car doubles its speed, its kinetic energy will be Increased to four times The same Doubled Increased to the three times
6 A bullet of mass 0.05 kg has a speed of 300 ms-1. Its kinetic energy will be. 2250 J 4500 j 1500 J 1125 J
7 The power of a waer pump is 2 kW. The amoutn of water it can raise in one minute to a height of 5 meter is 2400 litres 1000 litres 1200 litres 2000 litres
8 The SI Unit of Power is Watt Joule Newton Second
9 A Joule can also be written as. kgms<sup>-2</sup> kgms<sup>-1</sup> kgms<sup>-2</sup>S<sup>-2</sup> kgms<sup>-2</sup>S<sup>-3</sup>
10 Work done is maximum when the angle between the force F and the displacemtn d is 60 <sup>o</sup> 30<sup>o</sup> 0<sup>o</sup> 90<sup>o</sup>
11 A setallite of mass 'm' is revolving around the earth with an orbital speed 'v' If mass of the satellite is doubled, its orbital speed will become. Double Half One fourth Remain the same
12 A car drives at steady speed around a perfectly circular track The car's acceleration is zero The net force on the car is zero Both the aceleerain and net force n the the car point inward Both the accelerationand net fore on the the car point outward
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