Physics 9th Class English Medium Unit 5 Online Test With Answers

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Physics 9th Class English Medium Unit 5 Online Test

Sr. # Questions Answers Choice
1 A heavy and a lighter object have same momentum. The object with greater kineic energy is. Heavy Lighter Same kinetic energy Either a or b
2 A car, an ele;phant and a cricket ball have same kinetic energies, Which of these have greater speed. Car Cricket ball All have same speed Elephant
3 The unit of work or energy joule is equal to............... Newton metre Horsepower Watt metre Newton second
4 Which of the following is not renewable eergy soruce. Fossil fuels Hydroelectric energy Wind energy Solar energy
5 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
6 The energy possessed by abody by virtue of its position is. Solar energy Chemical energy Potential energy Kinetic energy
7 If a car doubles its speed, its kinetic energy will be Increased to four times The same Doubled Increased to the three times
8 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
9 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
10 The SI Unit of Power is Watt Joule Newton Second
11 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>
12 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>
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