MCQS OF PHYSICS CLASS 9 AND 10

In British, 1 hp =

• 505 ft.lb/s

• 580 ft.lb/s

• 530 ft.lb/s

• 550 ft .lb/s

Boiling point of pure water is ?

• 0K

• 373 K

• 100 K

• 237 K

The planet nearest to the earth is ?

• Venus

• Mercury

• Uranus

• Sun

Law of Universal Gravitation was forward by Sir Issac Newton in____

• 1687

• 1876

• 1979

• 1786

The change of velocity on the circle path is called ?

• Centripetal force

• Acceleration

• Centripetal acceleration

• Velocity

Artificial satellites have been launched since ...

• 1657

• 1757

• 1867

• 1957

Force and acceleration is directly proportional to each other according to newtons ____ law.

• 1st

• 2nd

• 3rd

• Non

The turning effect of a force abour an axis is called.

• Force

• Torque

• Rotation

• Momentum

If the speed of the moving body in circle is double its centripetal acceleration become

• Twice

• Eight time

• Four time

• None

The rate of change of velocity is called

• Uniform velocity

• Acceleration

• Gravitational force

• Uniform speed