Sound Flashcards
Use the flashcards to help you prepare for the lesson quiz.
Goal:
Goal:
Make sure you know all the terms in this set of flashcards before attempting the quiz!
Define the term.
beat/rhythm
a steady pattern of sounds; could be fast or slow
Define the term.
decibel
a unit used to describe how loud a sound is
Define the term.
eardrum
the part of our body that vibrates, allowing us to hear
Define the term.
earplugs and earmuffs
objects that can help block sound from the ears
Define the term.
echo
when sound bounces off something and comes back to where it came from
Define the term.
echolocation
a system dolphins, bats, and other animals use to locate objects; involves making sounds that are usually very high-pitched and that bounce off the object and return to the animal
Define the term.
hertz
a unit used to measure the frequency of vibrations and waves, such as sound waves; one hertz equals one cycle per second
Define the term.
high frequency
a sound wave that is vibrating rapidly and has a high pitch
Define the term.
loud
how a sound wave with a lot of energy sounds
Define the term.
low frequency
a sound wave that is vibrating slowly and has a low pitch
Define the term.
molecules
very small particles that vibrate when a sound is made
Define the term.
movement of sound
travels in waves; can be blocked, absorbed, or bounce off things
Define the term.
pitch
how high or low a sound is
Define the term.
soft
how a sound wave with very little energy sounds
Define the term.
sound
a type of energy that moves through the air in waves and makes things vibrate
Define the term.
sound wave
a compression wave that produces sound
Define the term.
tone
the quality or character of a sound—bright, warm, sharp, or shrill, for example
Define the term.
ultrasonic
a sound with a frequency that is above the human ear's ability to hear it
Define the term.
vibrate
move back and forth quickly
Define the term.
volume
how loud or soft a sound is
Summary
Correct:
Incorrect: