Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Physical Science

Chpt 13 vocab for final

Pitch part of sound determined by the frequency
Quality determines the difference between a trumpet and a flute playing the same note
Loudness the response of your ear to the sound
Intensity measures the power of the sound at its source
Resonance when two objects have the same natural frequency
Human Hearing Range 20Hz-20,000Hz
Sound-Reflecting Surfaces that bounce off echoes
Sound-Deadening Surfaces that soak up echoes
Superposition the combination of two or more waves
Decibel unit of loudness; measures loudness
Acoustics the study of sound
SONAR SOund Navigation And Ranging; using sounds to locate an object
Active SONAR uses transducers to emit sound
Passive SONAR uses hydrophones to listen for emitted sounds
Hydrophone a waterproof microphone used to passively detect sounds under water
Ultrasonic Waves sound waves above the range of human hearing
Infrasonic Waves sound waves that cannot be heard but can often be felt
Seismology the study of earthquakes
Outer Ear this part of the ear funnels sound into the ear
Middle Ear this part of the ear contains the hammer, anvil, and stirrup
Inner Ear this part of the ear contains the cochlea
Anvil (incus) passes vibrations from the hammer to the stirrup
Cochlea translates sound into nerve impulses to be sent to the brain
Semicircular Canal the organs of balance
Eustachian Tube allows you to equalize pressure on both sides of the eardrum when you yawn or swallow
Created by: Giraffe Girl