Energy transfer to surroundings Grade 7
Natural Sciences Grade 7 · Term 3 · Weeks 1-10 · questions coming soon
Energy transfer to surroundings Questions and Answers Grade 7
What the ATP covers
Useful and wasted energy; energy lost as heat and sound to the surroundings.
Textbook: CAPS Annual Teaching Plan, Grade 7, Term 3: Energy and Change.
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Sources of energy
Renewable and non-renewable energy sources; how electricity is generated.
Potential and kinetic energy
Stored (potential) energy and movement (kinetic) energy; energy conversions.
Heat transfer
Conduction, convection and radiation; conductors and insulators of heat.
Insulation and energy saving
Insulating materials; designing a device that reduces heat loss; saving energy at home.
The national electricity supply system
Power stations, transmission lines and the grid; using electricity safely and efficiently.