Electromagnetic Waves    Revision Questions

 

  1. Write down the 7 types of electromagnetic wave in order
  2. Which one has the biggest wavelength?  Which has the smallest?
  3. What happens when a radio wave is absorbed by an aerial?

 

  1. Create a table. In it write down 2 or 3 uses for each type of wave (do not copy and paste this from the website)

 

  1. What types of electromagnetic waves have more energy?

 

  1. What does “ionise” mean?

 

  1. How much damage is done depends on 2 things. What are they?

 

  1. If you worked in a place where ionising radiation was used what precautions might you take?

 

  1. Complete this table

 

 

What it means

What its measured in

speed

 

 

frequency

 

 

wavelength

 

 

 

  1. What does MHz stand for?

 

  1. What is the speed of all electromagnetic waves?

 

  1. What equation links the 3 quantities in the table above?

 

  1. A radio station transmits at 94MHz. Calculate its wavelength.