- Draw a graph depicting a skydivers speed against time when jumping from a plane, until he deploys his parachute, explaining the logic of your answer through the forces applicable to the body.
- A student is investigating how the pressure exerted by a gas varied with the volume of the gas. The initial pressure was 1.6x10^5 Pa, with the volume being 9.0cm^3. Calculate the volume of the gas when the pressure was 1.8x10^5 Pa
- Which is heavier, a ton of feathers or a ton of lead?
- How do Transformers work?
- It takes 4200 Joules to heat up 1 kg of water by 1 C^o. If you have a kettle with a power of 2500 Watts, how long will it takes to boil 0.8 kg of water from an initial temperature of 25 C^o to the nearest second??