Page 6 - Introduction to Physics

Derived
quantities Expressed in base quantities Derived units
(symbol)

Mass
Density , ρ Density  kgm –3
Volume

nt
Displaceme
Velocity , v Velocity ms –1
Time

Change in velocity
Acceleration, a Accelerati on  ms –2
Time

Momentum, p Momentum = mass x velocity kgms –1

Force, F Force = mass x acceleration N / kgms –2

Force
–1 –2
Pressure, P Pressure Nm / Pa / kgm s
–2
Area

Weight, W Weight = mass x gravitational acceleration N / kgms –2

6