List three forms of biofuel
Wood
Coal
Oil
Wind
Urine
Straw
Manure
Uranium is a nuclear fuel
What are the advantages of using nuclear power?
Fossil fuel reserves are not used
No pollution or greenhouse gases are released into the atmosphere
Pollution and greenhouse gases are released into the atmosphere
It has a low cost in maintainence
Waste can easily be disposed of
What are the disadvantages of using nuclear power?
High cost in maintenace
Need of careful disposal of radioactive waste
The risk of nuclear meltdown
Fossil fuels are reserved
Pollution and greenhouses gases are produced in the atmosphere
Gives people more employment
What are the three types of radioactivity?
Alpha
Beta
Gamma
Ultraviolet
Radioactive
X-ray
Radiation causes ionisation
Alpha radiation can penetrate 3mm thick aluminium
Alpha penetration can be stopped by paper
Beta radiation can penetrate 3mm thick aluminium
Gamma is the strongest of the three named radiations
Alpha, Beta and Gamma radiation come from the nucleus of a radioactive atom
What precautions should we take when handling radioactive materials?
Wear special protective clothing
Distance yourself from the radioactivity
Use shielding to absorb radiation
Hide
Destroy it
Use material in short time periods
Use tongs to handle the material
Swallow it
Lick it
How can gamma rays be used medically?
Radiotherapy is preformed to kill cancer cells.
Sterilise medical equipment
Examine bones
To create superpowers
To preform a eye test
