More cards in this set

How is the intensity of a beam measured?

What does the energy transferred to an absorber by a beam of electromagnetic radiation depend on?

What happens to the intensity of electromagnetic radiation as it travels further?

What can ultraviolet radiation, x-rays and gamma rays do?

What is ionisation?

How can radiation damage living cells?

Why can microwaves be used to heat objects containing water?

How are we protected from microwave radiation?

What do radioactive materials emit all of the time?

What does the ozone layer do?