Physical Quantities in Physics

Front

What are physical quantities?

Back

All measurable quantities known as physical quantities consist of magnitude and unit.

Front

What is the SI unit?

Back

SI stands for System International Unit, used to represent the unit of physical quantities.

Front

What are base quantities?

Back

Base quantities are fundamental physical quantities that cannot be derived from other quantities.

Front

What are derived quantities?

Back

Derived quantities are formed by using base quantities.

Front

What is a meter rule?

Back

A meter rule can measure length up to 100 cm and is used for measuring straight lines.

Front

What is a tape measure?

Back

A tape measure is a flexible, 3D measurement instrument that can measure lengths up to several meters.

Front

What are Vernier calipers used for?

Back

Vernier calipers are used to measure the internal and external diameters of objects.

Front

What does a micrometer/screw gauge measure?

Back

A micrometer measures very small objects that calipers cannot, such as the thickness of paper.

Front

What is the difference between scalar and vector quantities?

Back

Scalar quantities have only magnitude, while vector quantities have both magnitude and direction.