Sound 1
Space that contains few or no molecules so sound cannot travel here.
vaccuum
Sound must have __________ to travel through.
What is matter or a medium.
How sounds travel from one location to another.
sound waves
When you blow into or across a bottle with more water in it it will have a _______ pitch than if the bottle has less water.
(higher or lower)
What is higher.
Listening to music or any noises above ____ db can cause hearing damage.
What is 85
Number of waves that pass each second.
frequency
A special nerve inside the head carries messages from the ear to the____________________.
brain
Scientists can use ________ to locate objects underwater.
What sonar.
Volume is measured in units called ___________
What is decibels
Sound would travel most quickly through which object: air, wood, outer space or water.
What is wood.
When we talk, sound travels through this.
What is air.
When tapping bottles with water in them, the more water in the bottle the ________ the pitch.
(Higher or lower)
What is lower.
True or False. Sound can travel through water.
True