More cards in this set

Card 6

Front

What are used to produce ultrasounds and what are the wave frequencies like?

Back

Preview of the front of card 6

Card 7

Front

What is the range of human hearing?

Back

Preview of the front of card 7

Card 8

Front

What can ultrasounds be used for?

Back

Preview of the front of card 8

Card 9

Front

What happens when an ultra sound wave meets a boundary between two media's? What does the time taken for the waves to reflect indicate?

Back

Preview of the front of card 9