hearing science exam #1

What are the 3 requirements for sound?

• Elastic Medium

• Energy Source

• Frequency Source

• Sound Source

• Particles are more spread out, this is ____

More particles than normal trying to take up a certain amount of space, this is ___

The points of rarefaction and condensation in one cycle until it reaches equilibrium, this is a ____ of a wave

3 important properties of sound

• Time

• Frequency

• Intensity

• Oscillation

• - X-axis in the middle 

• - Negative and positive 

• - Time domain

What type of sound graph is this?

• Frequency domain 

• Typically intensity is either positive OR negative, only 1 represented 

• visual representations of the relation between frequency and intensity 

• What type of sound graph is this?

• A visual representation of the frequency and intensity of a sound over time 

• Time domain

• No negatives 

• shading/color intensity 

  • The darker the shading the higher the intensity vice versa

  • What type of sound graph is this?

The time it takes for the wave to complete 1 cycle

the number of cycles completed in 1 second