More cards in this set

Card 6

Front

what is the equation for magnification ?

Back

Preview of the front of card 6

Card 7

Front

what medium does sound not travel in ?

Back

Preview of the front of card 7

Card 8

Front

what do you call sound that is higher than 20 000 Hz ?

Back

Preview of the front of card 8

Card 9

Front

What two things do we use ultrasound waves for ?

Back

Preview of the front of card 9