Sound

Question 1

What is the definition of a sound

Answer 1

Sound is a longitudinal wave. It travels via compressions and rarefactions of particles in a medium.

Question 2

Why does sound not pass through a vacuum

Answer 2

Because there is no particles for it to pass it on to.

Question 3

Where does sound pass the quickest; solid, liquid or gas. Why?

Answer 3

Solid because the vibrations can pass through to the other particles more quickly.

Question 4

What gets longer when sound speeds up?

Answer 4

The wavelength

Question 5

What is in an ear that makes us hear a sound (all structures)

Answer 5

Ear canal, Ear drum, semicircular canals, auditory nerve, cochlea, ossicles (group of 3 bones).

Question 6

What does a higher amplitude mean in sound waves

Answer 6

Higher volume/louder

Question 7

What is the human hearing range

Answer 7

20 to 20000 Hz

Question 8

What does frequency do to sound

Answer 8

Higher frequency results in a higher pitch while lower frequency creates a lower pitch

Question 9

What does an do oscilloscope

Answer 9

An oscilloscope takes sound energy and converts it into electrical energy and draws the longitudinal sound wave as a transverse wave allowing us to see features such as amplitude and frequency.