Science// Sound
This is a KS3 piece of work
- Created by: issy_
- Created on: 16-06-14 17:31
View mindmap
- Sound
- Longitudinal Waves
- -Have Vibrations -Vibrations are parallel to direction of wave -Vibrations are parallel to direction of energy transfer
- -Sound Travels as Longitudinal Pressure Wave -Sound waves caused by vibrating objects -Sound needs to travel through medium (air, water) to pass on sound vibrations -Vibrations are passed through medium as a series of compressions -Sound can't travel in space because no particles
- -More particles faster sound wave travels -Denser medium faster sound travels because more particles -Faster in solids than liquids, liquids faster than gases -Sound travels faster than light
- -Sound Travels as Longitudinal Pressure Wave -Sound waves caused by vibrating objects -Sound needs to travel through medium (air, water) to pass on sound vibrations -Vibrations are passed through medium as a series of compressions -Sound can't travel in space because no particles
- -Have Vibrations -Vibrations are parallel to direction of wave -Vibrations are parallel to direction of energy transfer
- Travels
- -Sound Travels as Longitudinal Pressure Wave -Sound waves caused by vibrating objects -Sound needs to travel through medium (air, water) to pass on sound vibrations -Vibrations are passed through medium as a series of compressions -Sound can't travel in space because no particles
- -More particles faster sound wave travels -Denser medium faster sound travels because more particles -Faster in solids than liquids, liquids faster than gases -Sound travels faster than light
- -Sound Travels as Longitudinal Pressure Wave -Sound waves caused by vibrating objects -Sound needs to travel through medium (air, water) to pass on sound vibrations -Vibrations are passed through medium as a series of compressions -Sound can't travel in space because no particles
- Reflected
- -Sound can be reflected and refracted like light -Echo is sound reflected from surface
- Absorbed
- -Sound can be absorbed -Absorbed into soft things like carpets etc...
- -Sound can be reflected and refracted like light -Echo is sound reflected from surface
- -Sound can be absorbed -Absorbed into soft things like carpets etc...
- Speed
- Frequency
- -Frequency is pitch of sound -Frequency of sound is number of complete waves that pass a point per second -A measure of how high-pitched the sound is -High frequency means high-pitched sound -measured in Hertz (Hz) = vibrations per second
- -Have Vibrations -Vibrations are parallel to direction of wave -Vibrations are parallel to direction of energy transfer
- -Have Vibrations -Vibrations are parallel to direction of wave -Vibrations are parallel to direction of energy transfer
- -Frequency is pitch of sound -Frequency of sound is number of complete waves that pass a point per second -A measure of how high-pitched the sound is -High frequency means high-pitched sound -measured in Hertz (Hz) = vibrations per second
- Hearing
- -Sound waves make your ear drum vibrate. -Object vibrates, Air vibrates, Ear drum vibrates, Ear bones vibrate, Hairs in cochlea vibrate + send message to brain along auditory nerve
- -Range of frequencies (vibrations per second) you can hear -Humans = 20-20 000 Hz, meaning we can't hear low pitched sounds lower than 20Hz or high pitched sounds over 20 000Hz -Some animals can hear much higher frequencies
- -Sound waves make your ear drum vibrate. -Object vibrates, Air vibrates, Ear drum vibrates, Ear bones vibrate, Hairs in cochlea vibrate + send message to brain along auditory nerve
- Auditory ranges
- -Range of frequencies (vibrations per second) you can hear -Humans = 20-20 000 Hz, meaning we can't hear low pitched sounds lower than 20Hz or high pitched sounds over 20 000Hz -Some animals can hear much higher frequencies
- Longitudinal Waves
Comments
No comments have yet been made