Sound
What part of our body senses sound?
What is, our ears.
All sound are made through ________________.
What is, vibrations.
The highness or lowness of sound is called________.
What is, pitch.
What are the 3 parts of the ear?
What is, the outer ear, middle ear, and the inner ear
An object that allows sound to pass through it readily.
What is, a conductor.
The energy produced when sound is created.
What is, sound energy.
How does sound travel?
What is, in waves.
The number of vibrations in a certain period of time is called_______________ ?
What is, frequency.
The _________is a thin piece of tightly stretched skin that is part of the middle ear.
What is, the eardrum.
An object that does not allow sound to pass through it easily.
What is, an insulator.
True or False. You can blow out a candle flame using sound waves.
What is, true.
True or False. Sound travels in a straight line.
What is, false.
If a sound has a high frequency, which is a faster vibration, the pitch will be ____________.
What is, higher.
Sound waves are funneled by the outer ear, which can also be called the _________.
What is, the pinna.
Sound needs a medium to travel through. What are the 3 mediums?
What is, a solid, liquid, and gas.
True or False. Sound waves can travel through a liquid.
What is, true.
Sound waves get _____________ as they move away from the source of the sound.
What is, weaker.
If a sound has a lower frequency, which is a slower vibration, the pitch will be ____________.
What is, lower.
What vibrates the eardrum?
What is, sound waves.
What medium is the best conductor?
What is, a solid.
Sound that is too high pitched for humans to hear.
What is, ultrasonic sound.
The weaker the sound waves, the ____________ it is to hear the sound.
What is, harder.
How can we change the pitch and frequency of a sound?
What is, by changing the amount of space available for the sound to travel.
What part of the ear is filled with liquid and tiny hairs?
What is, the cochlea.
What material would be a better insulator, metal or foam?
What is, foam.