Answers to AQA GCSE Wind and Solar (Combined Science)
Answers to Practice Questions
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1. Describe the difference between solar cells and solar heating panels
Solar cells use sunlight to produce electricity
Solar heating panels Absorb IR from the sun to heat water, to provide hot water to the house.
2. Why would solar be considered to be an unreliable energy resource
Solar intensity varies throughout the day, season or year. There is no sunlight overnight.
3. What can the electricity be used for that is generated?
Heating of homes with electric heaters
Transportation (electric vehicles)
Electrical appliances
Absorption and Emission of EM Radiation
JJ Thomson and Plum pudding model
Ernest Rutherford and the Nuclear Model
Niels Bohr changing the Nuclear Model
Discovering the Proton and Neutron
Measuring radiation from radioactivity
Radiation types and properties
Random nature of radioactive decay
Radioactive contamination or irradiation
Hazards of contamination and irradiation
Studies on the effects of radiation on humans
