Vectors

A scalar is a quantity that has a magnitude but no direction

A vector is a quantity that has both magnitude and direction

Examples: Scalars

Mass m (kilogram kg)

distance d (metre m)

time t (second s)

electric current I (ampere A)

temperature T (kelvin K)

luminous intensity I (candela cd)

amount of substance n (mole mol)

energy E (joule J)

Examples: Vectors

Displacement (length m and angle)

velocity (speed m/s