Physics Class

1.This principle of quantum mechanics says a particle's position and its momentum cannot both be known exactly at the same time.

2.This effect explains why the pitch of an ambulance siren drops as it speeds past you.

3.This law of motion states that for every action there is an equal and opposite reaction.

4.This is the speed of light in a vacuum, rounded to the nearest hundred thousand kilometres per second.

5.This is the SI unit of energy, equal to one newton acting over one metre.