Question # 1

A heavy and a lighter object have same momentum. The object with greater kineic energy is.

Choose an answer

Heavy

Lighter

Same kinetic energy

Either a or b

A bullet of mass 0.05 kg has a speed of 300 ms-1. Its kinetic energy will be.

Choose an answer

2250 J

4500 j

1500 J

1125 J

Which of the following is not renewable eergy soruce.

Choose an answer

Fossil fuels

Hydroelectric energy

Wind energy

Solar energy

The magnitude of momentum of an object is doubled. the kinetic energy of the object will

Choose an answer

Double

Increase to four times

Reduce to one half

Remain the same

The type of energy derived from heated groud water is

Choose an answer

Tidal energy

Hydroelectric energy

Nuclear energy

Geothermal energy

A ball weighing 50 N is lifted to a height of 5 metre. The potential energy stored in it is.

Choose an answer

25 J

250 J

55 J

45 J

A Partical enegine cannot have an efficiency equal to.

Choose an answer

0

1

0.8

0.5

If a car doubles its speed, its kinetic energy will be

Choose an answer

Increased to four times

The same

Doubled

Increased to the three times

A car, an ele;phant and a cricket ball have same kinetic energies, Which of these have greater speed.

Choose an answer

Car

Cricket ball

All have same speed

Elephant

A Joule can also be written as.

Choose an answer

kgms^-2

kgms^-1

kgms^-2S^-2

kgms^-2S^-3

A force is acting on body but causes no displacemtn. The work done on the body is

Choose an answer

Negative

Zero

Positive

Infinite

One unit of horsepower is equivalent

Choose an answer

716 W

746 W

736 W

756W

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

Choose an answer

2400 litres

1000 litres

1200 litres

2000 litres

More Classes

Other Links

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

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer