Wave frequency can be measured by counting the number of crests or compressions that pass the point in 1 second or other time period. The higher the number is, the greater is the frequency of the wave.

Having read the above passage, choose the right answer to the following question (choices are 10 crests or 5 crests ):


Ron watches a wave for 10 seconds and notices 10 crests. He watches another wave for 10 seconds and sees 5 crests. Which wave has a greater frequency 10 crests or 5 crests? 

