Essential idea: The fundamental concept of energy lays the basis upon which much of science is built.
Understandings: Work done as energy transfer, Principle of energy conservation, Kinetic energy
Applications and skills: Discussing the conservation of total energy within energy transformations, Sketching and interpreting force–distance graphs
Guidance: Cases where the line of action of the force and the displacement are not parallel should be considered; Examples should include force–distance graphs for variable forces
Data booklet equations: W = Fs cos theta; E(k) = 1/2 mv^2