Physics

PHYSICS 1

Unit Section	Elements	Soil-Net Links
	All bodies emit and absorb thermal radiation.	Soils and climate change
	Both wasted energy and the energy that is usefully transferred/transformed are eventually transferred to their surroundings which become warmer.	Global cycles Oxygen cycle Nitrogen cycle Carbon cycle
13.4 How should we generate the energy we need?
	Using different energy resources has different effects on the environment. These effects include the release of substances into the atmosphere, noise and visual pollution, and the destruction of wildlife habitats.	Global cycles Oxygen cycle Nitrogen cycle Carbon cycle Soils and climate change
	The advantages and disadvantages of using fossil fuels, nuclear fuels and renewable energy sources to generate electricity. These include the cost of building power stations, the start-up time of power stations, the reliability of the energy source, the relative cost of energy generated and the location in which the energy is needed.	Global cycles Oxygen cycle Nitrogen cycle Carbon cycle Soils and climate change
13.5 What are the uses and hazards of the waves that form the electromagnetic spectrum?
	Different wavelengths of electromagnetic radiation are reflected, absorbed or transmitted differently by different substances and types of surface.	Soils and climate change Concerns over climate change
13.6 What are the uses and dangers of emissions from radioactive substances?		Soil pollution