Class 9

What is the SI unit of electric current?

• Ampere

• Candela

• Mole

• Celcius

The CGS unit of force is ..............

• Newton

• Kelvin

• Erge

• Dyne

............. is a fundamental unit?

• Hertz

• Km

• Pascal

• None of them

What is the acceleration of a body during uniform motion?

• 0 m/s²

• 9.8 m/s²

• 1m/s²

• 5m/s²

Which velocity is 0 if the body is thrown upward ?

• Initial velocity

• Final velocity

• Average velocity

• None of them

Inertia depends on .............

• Acceleration

• Weight

• Force

• Mass

Gives the definition of force ?

• Newton's Second Law of motion

• Newton's First Law of motion

• Newton's third law of motion

• All

Rocket is based on ..........

• Newton's First Law of motion

• Newton's Second Law of motion

• Newton's Third Law of motion

• None of them

What is the relation between acceleration and mass of a body?

• Inversely proportional

• Directly proportional

• Equal

• None

Beating carpet with a stick to separate dust is an example of ........

• Inertia of direction

• Inertia of rest

• Inertia of motion

• All