Physical Quantity & Measurement Video

What defines a physical quantity?

• Something that can be seen and touched.

• Something that can be measured and consists of a magnitude and a unit.

• Something that has only a magnitude.

• Something that has only a unit.

Into what two main types are physical quantities classified?

• Scalar and Vector quantities.

• Fundamental and Supplementary quantities.

• Base and Derived quantities.

• Direct and Indirect quantities.

Which of the following is a base quantity?

• Mass

• Length

• Speed

• Time

What is the SI unit for electric current?

What does the prefix "kilo" represent in terms of powers of 10?

• 10^2

• 10^3

• 10^6

• 10^9

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