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Edexcel GCSE Physics Topic 14 - Particle Model

Below is everything the examiners think you know, if you're not sure of something click on the link to watch my YouTube video explanation. For a copy of these you can print off, get the FREE revision guide I wrote for you.

• I can describe the energy changes that happen when a substance changes state

• I can describe the energy in the atoms and molecules as internal energy

• I can explain that a change in the internal energy will lead to a change in temperature or a change in state

• I can define density

• I can recall the units needed for ρ = m/v

• I can rearrange ρ = m/v

• I can use ρ = m/v

• I can define specific heat capacity and specific latent heat

• I can recall the units needed for ΔQ = mcΔθ

• I can rearrange ΔQ = mcΔθ

• I can use ΔQ = mcΔθ

• I can recall the units needed for Q = mL

• I can rearrange Q = mL

• I can use Q = mL

• I can describe how to reduce energy loss by insulation

• I can describe the movement of particles in a gas

• I can relate the temperature of the gas to the average kinetic energy of the system

• I can describe the movement of particles at absolute zero

• I can convert between kelvin and Celsius - Physics only

• I can explain how the motion of a gas relates to the pressure in a system - Physics only

• I can relate the volume of a gas to the pressure - Physics only

• I can recall the units needed for P1V1 = P²V² - Physics only

• I can rearrange P1V1 = P²V² - Physics only

• I can use P1V1 = P²V² - Physics only

• I can explain how doing work on a system can increase the temperature - Higher tier only - Physics only