vector 同scalar

Vector:
displacement, velocity, acceleration, force, momentum, gravitational field, electric field, magneic field
Some examples of force: weight, normal reaction, friction, tension

Scalar:
mass, density, volume, distance, speed, energy, heat, work, power, current, electric charge, voltage, resistance, temperature, heat capacity, speicific heat capacity, latent heat, specific latent heat, wavelength, frequency, period, amplitude, loudness of sound, sound intensity level (dB), half-life, activity,
flow rate (mass or volume passing per unit time, just used in 2006 and 2005 HKCEE)