Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Normal Size Small Size show me how
Science 9.2
| Question | Answer |
|---|---|
| what is the form of energy produced & transmitted by vibrating matter known as | sound |
| what wave travels as longitudinal waves | sound |
| what travels more quickly through solids than liquids or gases mediums | sound |
| what is the state of matter through which sound waves travel through known as | medium (media pl) |
| all sound is carried through matter as what | sound waves |
| sound waves are alternating areas of what in the air | high & low pressure |
| sound waves move out in all directions from the origin which is a what | vibrating object |
| how do sound waves move in warmer weather | faster |
| how do sound waves move in colder weather | slower |
| what is an instrument that uses reflected sound waves to find underwater objects | sonar |
| what uses sonar to find other underwater objects | submarine or battleship |
| what do bats,whales & porpoises use to find their prey | sonar or echolocation |
| the sound waves that animals in water use have such a what that they can not be heard by humans | high pitch frequency |
| what bounces off an object & are then bounced (reflected) back to the collector | animal sound waves |
| what is a measure of how loud or soft a sound is | volume (loudness) |
| what does volume depend on thats of a sound wave | amplitude (height from equilibrium) |
| as wave height increases what increases | volume |
| what is volume measured in | decibels |
| intensity is also known as | pitch |
| a measurement of how high or low (length of a wave) a sound is | pitch |
| what does pitch depend on | frequency of a sound wave |
| as wavelength increases pitch does what | decreases |
| how is pitch measured | Hertz |
| what is this abbreviation for dB | decibels |
| what is this abbreviation for Hz | Hertz |
| remember, decibels are used to measure what | volume |
| remember, Hertz are used to measure what | pitch or frequency |
| how can instruments be played at different pitches | changing the lengths of different parts of the instruments |
| what is another way to make different pitches | change the thickness of the material that vibrates |
| sound is a what | vibration |
| what is the back and forth movement of molecules of matter | sound |
| what three parts of the ear do sound waves move | outer,middle, & inner ear |
| which part of the ear collects sound waves | outer ear (also called Pinna) |
| which part of the ear amplifies the sound waves & converts it into mechanical energy using bones | middle ear |
| which part of the ear converts the mechanical energy (vibrations) into liquid waves inside the Cochlea | inner ear (also called Cochlea) |
| what is used to bend hairs & convert wave energy to electrical energy using nerves | liquid waves |
| what sends the electrical energy to the brain to be processed which which gives humans the sensation of sound | Auditory nerves |
Created by:
s731767