Sound
What are sounds caused by?
Sounds are caused by vibrations.
Name the part of an ear that is visible.
The part of an ear that is visible is the outer ear.
What is volume?
Volume is the loudness of a sound (how loud or soft a sound is).
What is pitch?
Pitch is how high or low a sound is.
How does sound travel?
Sound travels through waves.
What are vibrations?
Vibrations are rapid back and forth movements.
Sound waves travel through the ear _________.
Sound waves travel through the ear canal.
What is used to measure the loudness of a sound?
True or False: High pitch sounds sound squeaky.
True: High pitch sounds sound squeaky.
What is the low point of a wave?
The low point of a wave is the trough.
What is sound?
Sound is a form of energy that travels as waves through matter.
Give an example of onomatopoeia.
An example of onomatopoeia is...Crash! Boom! Bang! Click!
Loud sounds have _________ energy so they travel far.
Loud sounds have more energy so they travel far.
How is pitch determined?
Pitch is determined by the frequency of a sound wave.
What is the high point of a wave?
The high point of a wave is the crest.
In which direction(s) does sound travel?
Sound travels in all directions.
Name the three tiny bones in an ear.
The three tiny bones in an ear are the hammer, the anvil, and the stirrup.
Soft sounds have _________ energy so they don't travel far.
Soft sounds have less energy so they don't travel far.
Low pitch sounds have low frequency.
The number of crests or troughs of a wave that pass by over a certain amount of time is called the _________.
The number of crests or troughs of a wave that pass by over a certain amount of time is called the frequency.
Sound travels best through __________.
Sound travels best through solids.
__________ tell your brain what you hear.
Nerves tell your brain what you hear.
Soft sounds have _________ waves and loud sounds have __________ waves.
Soft sounds have low waves and loud sounds have high waves.
_________ pitch sounds have high frequency.
High pitch sounds have high frequency.
The distance between one crest or trough to the next is called the wavelength.