Unit 5 14.2

What is the selection mainly about

• Doctors using turning forks to test hearing

• Playing a guitar is difficult

• Turning forks are a useful tool

• Musical instruments have different pitches

What does the word 'Pure' mean in the following sentence from the selection?

"Turning forks make a very pure kind of sound"

• not beautiful sounds

• loud and disruptive sound
• harsh and jarring sound
• beautiful sounds

What determines the pitch of the sound a tuning fork makes?

• The size of the tuning fork.
• The material the tuning fork is made of.
• The temperature of the environment.
• The frequency of vibration of the tuning fork.

True or False:

The shorter the prongs on a tuning fork, the higher the pitch

• False
• True

What is the main idea of the paragraph IN A FULL SENTENCE!!!!

"Musicians use tuning forks to tune their insturment. A guitar plaer can play a note on her guitar. Then, she compare that note with the note made by a tuning fork. If the note from the guitar sounds to high, she can loosen the string. If the note sounds to low, she csn tighten the string, then, she can try it again."