#P6.1.1
a) define density
b) describe how to determine the densities of solid and liquid objects using measurements of length, mass and volume
PAG1
#P6.1.2
recall and apply the relationship between density, mass and volume to changes where mass is conserved:
density (kg/m3) = mass (kg) ÷ volume (m3)
#P6.1.3
describe the energy transfers involved when a system is changed by heating (in terms of temperature change and specific heat capacity)
#P6.1.4
define the term specific heat capacity and distinguish between it and the term specific latent heat
#P6.1.5
a) select and apply the relationship between change in internal energy of a material and its mass, specific heat capacity and temperature:
change in internal energy (J) = mass (kg) × specific heat capacity (J/kg°C) × change in temperature (°C)
b) explain how to safely use apparatus to determine the specific heat capacity of materials
PAG5
#P6.1.6
select and apply the relationship between energy needed to cause a change in state, specific latent heat and mass:
energy to cause a change of state (J) = mass (kg) × specific latent heat (J/kg)
#P6.1.7
describe all the changes involved in the way energy is stored when a system changes, and the temperature rises, for example: a moving object hitting an obstacle, an object slowing down, water brought to a boil in an electric kettle
#P6.1.8
make calculations of the energy transfers associated with changes in a system when the temperature changes, recalling or selecting the relevant equations for mechanical, electrical, and thermal processes