Physics Definitions and Formulae for Semester 1 and 3

Front

What are physical quantities?

Back

Quantities that can be measured.

Front

What is a scalar product?

Back

a.b = |a||b|cosθ

Front

What is a vector product?

Back

a x b = |a||b|sinθ

Front

What is absolute uncertainty?

Back

∆l

Front

What is fractional uncertainty?

Back

∆l/l

Front

What is percentage uncertainty?

Back

(∆l/l) x 100%

Front

What is a base quantity?

Back

A physical quantity that cannot be derived from other physical quantities.

Front

What is a derived quantity?

Back

A physical quantity derived from base quantities using multiplication, division, or formula.

Front

What is a unit?

Back

A standard measurement of a physical quantity.

Front

What is dimensional analysis?

Back

A method to determine how a physical quantity is related to other different base quantities.