AC9S9U04 Year 9 Science

Content descriptor use wave and particle models to describe energy transfer through different mediums and examine the usefulness of each model for explaining phenomena

Elaborations

• • Elaboration describing the processes underlying convection and conduction of heat in terms of the particle model
• • Elaboration modelling the transfer of sound energy as waves using slinky springs and relating to the medium through which the sound is transferred
• • Elaboration examining how the particle model of electricity explains static electricity and electrical current and relating this to voltage, conductors and insulators
• • Elaboration discussing the wave and particle models of energy transfer, including the concept of photons, and how they are useful for understanding aspects of light and other forms of electromagnetic radiation
• • Elaboration investigating aspects of heat transfer and conservation in the design of First Nations Australians’ bedding and clothing in the various climatic regions of Australia
• • Elaboration investigating the impact of material selection on the transfer of sound energy in First Nations Australians’ traditional musical, hunting and communication instruments
• • Elaboration examining the forms of electromagnetic radiation that are used in different modern communication technologies and identifying any limitations