P3 Particle Model of Matter 0.0 / 5 ? PhysicsEnergyGCSEAQA Created by: AzrahAnsar20Created on: 13-12-17 19:20 what can the particle be used to explain? 1. the different states of matter 2. differences in density 1 of 14 what is internal energy? where energy is stored inside a system by the particles (atoms and molecules) that make up the system. 2 of 14 what are changes of state? physical changes which differ from chemical changes because the material recovers its original properties if the change is reversed. 3 of 14 internal energy is the total _______ energy and ________ energy of all of the particles (atoms and _______) that make up a _______. kinetic, potential, molecules, system 4 of 14 what is the specific heat capacity of a substance? is the amount of energy required to raise the temperature of one kilogram of the substance by one degree celcius. 5 of 14 what is latent heat? the energy needed for a substance to change heat. 6 of 14 what is the specific latent heat of a substance? the amount of energy required to change the state of one kilogram of the substance with no change in temperature 7 of 14 specific latent heat of fusion change of state from solid - liquid 8 of 14 specific latent heat of vapourisation change of state from liquid to vapour 9 of 14 what is work? transfer of energy by a force 10 of 14 what can be done to gas? compressed or expanded by pressure changes 11 of 14 what does pressure produce when gas is expanded or compressed? produces a net force at right angles to the wall of the gas container 12 of 14 what is the constant motion of gas molecules? random 13 of 14 what is the temperature of gas related to? average kinetic energy of molecules 14 of 14
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