3.3.2 Patterns and trends in energy use

Explain patterns and trends in the use of energy resources Uses of mathematics ● Make calculations using ratios and proportional reasoning to convert units rates (1c, 3c). ● Calculate relevant values of stored energy and energy transfers; convert newton-metres and joules (1c, 3c). ● Make calculations of the energy changes associated with changes in a selecting the relevant equations for mechanical, electrical, and thermal express in quantitative form and on a common scale the overall redistribution the system (1a, 1c, 3c). Suggested practicals ● Investigate conservation of energy.