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MA 10B4
Abi sonny & jack
Question | Answer |
---|---|
what are the seven types of radiation? | radio waves,microwaves,infra-red,visible light,ultraviolet,x-rays and gamma rays |
what is radiation? | radiation is just a transfer of energy for example sunlight |
what are the 3 typesof ionising radiation? | they are ultra violet, x-rays and gamma rays. |
what protection do microwaves have to protect humans? | microwave ovens have metal cases and screens over there glass doors which reflect and absorb the microwaves stopping them getting out. |
what do microwaves transfer the energy in to? | substances that contain fat and water. |
why is the earth hotter than pluto? | this is because plutois further away from the sun so does not get as much energy. |
why is ionisation dangerous? | in the cells there are many important molecules including DNA, if these cells are exposed to ionising radiation it can damage these cells and cause mutations, this can also cause cancer. |