- What is the density of a rock (mass 75g) submerged in water which displaced by a volume of 37.5cm^3? SI units
- What is the doppler effect?
- Give an example of ionising radiation
- Explain what terminal velocity means.
- A car travelling at 14 m/s has to make an emergency stop so applies the brakes and it takes 1.5s to become stationary. What distance has the van travelled in that time?