This blog will cover and explain the specification for Edexcell triple science IGCSE 2013 Physics. Hope it helps :)
How do you answer a Boyle's Law question? For example: A syringe contains a gas at a pressure of 100kPa at a volume of 20cm3.The syringe is now squeezed in so that the new volume is 10cm3.What is the pressure of the gas now?
100X20=2000Because P1V1=P2V2 are equal you have to find somwthing that you can multiply by 10 to get 2000.2000/10=200KPa