base and derived quantities dbs10012

Which of the following quantity is base quantity ?

• voltage
• electric current
• electric energy
• electric power

Which of the following pairs of physical quantity and SI unit is correct ?

• Mass - SI unit : Gram
• Time - SI unit : Hour
• Electric current - SI unit : Volt
• Temperature - SI unit : Kelvin

What is base quantities ?

• the branch of science concerned with the nature and properties of matter and energy
• the branch of science that deals with the identification of the substances of which matter is composed
• physical quantities that cannot be defined in terms of other physical quantities

SI Unit of Length?

• metre

• kilometre

• kelvin

• Centimetre

Tags

CCSS.2.MD.A.2

SI Unit of Mass?

• Weight

• Gram

• Kilogram

• Kilometre

Tags

CCSS.3.MD.A.2

What is derived quantities ?

• a tendency to do nothing or to remain unchanged.
• combination of two or more base quantities
• the quantity of motion of a moving body, measured as a product of its mass and velocity.

Which of the following physical quantities is a derived quantity?

• Electric current
• Momentum
• Temperature
• Mass

The SI unit of time is

• hour

• second

• minute

• days

A vector quantity has

• direction only

• magnitude only

• magnitude and direction

• magnitude, direction and more

Tags

CCSS.HSN.VM.A.1

What is the SI unit of Amount of substance

• metre

• candela

• newton

• mole