4th Form Mid-terms: Physics - Equations (Motion, Forces and Energy Transfers) - IGCSE Edexcel

velocity (m/s)

distance (m) / time (s)

acceleration (m/s2)

(final velocity - initial velocity)/time

stopping distance (m)

thinking distance + breaking distance

efficiency

(useful energy/total energy) (J) x 100

energy (J)

mass (kg) x specific heat capacity (J/KgoC) x change in temperature (oC)

Force (N II Law) (N)

mass (kg) x acceleration (m/s2)

weight (N)

mass (kg) x gravitational field strength (m/s2)

momentum (kgms-1)

mass (kg) x velocity (ms-1)

Force (N), momentum (kgms-1), time (s)

force = change in momentum / time

moment (Nm)

force (N) x distance (m)