change in thermal Why is water used in hot water Determine the specific energy, in joules, J bottles? heat capacity of water ∆E, by experiment. mass, m, in kilograms, Define specific heat capacity. Required practical 2: kg Describe the factors that affect an investigation to specific heat capacity, c, how quickly a substance determine the specific in joules per kilogram up, eg why does a half-full heat capacity of one or more materials. The per degree Celsius, J/kg kettle heat up faster than a full investigation will involve oC kettle of water? linking the decrease of temperature change, Calculate the change in ∆θ, one energy (or work in degrees Celsius, oC thermal energy, mass, specific done) to the heat capacity or the increase in temperature The specific heat temperature change of a and subsequent capacity of a substance substance that is heated or increase in thermal is the amount of energy cooled. The equation will be energy stored. required to raise the provided on the equations temperature of one Physics AT 1 and 5 sheet. kilogram of the substance by one Pupils should be able to degree Celsius. convert to SI units and use standard form in their answers. The energy needed for a substance to change Explain why special concrete state is called latent blocks are used in storage heat. When a change of heaters. state occurs, the energy WS 3.5, MS 4a supplied changes the energy stored (internal
change in thermal energy, ∆E, in joules, J mass, m, in kilograms, kg specific heat capacity, c, in joules per kilogram per degree Celsius, J/kg oC temperature change, ∆θ, in degrees Celsius, oC 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 Celsius. The energy needed for a substance to change state is called latent heat. When a change of state occurs, the energy supplied changes the energy stored (internal Why is water used in hot water bottles? Define specific heat capacity. Describe the factors that affect how quickly a substance up, eg why does a half-full kettle heat up faster than a full kettle of water? Calculate the change in thermal energy, mass, specific heat capacity or the temperature change of a substance that is heated or cooled. The equation will be provided on the equations sheet. Pupils should be able to convert to SI units and use standard form in their answers. Explain why special concrete blocks are used in storage heaters. WS 3.5, MS 4a Determine the specific heat capacity of water by experiment. Required practical 2: an investigation to determine the specific heat capacity of one or more materials. The investigation will involve linking the decrease of one energy (or work done) to the increase in temperature and subsequent increase in thermal energy stored. Physics AT 1 and 5