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nathandsykes English 7 cards

Cards in this deck (7)

1What are the units for heat?Joules
2How do sound waves travel?Sound waves travel in loopy lines, they travel through air.
3What are the different parts of a sound wave?The different parts of a sound wave are,
-Amplitude
-Cress
-height
-Trough
4How do scientists analyse sound data?They measure waves frequency by measuring how many waves pass per second, they measure the waves, waves lengths and amplitude.
5Describe the difference in the ranges of hearing of different animals.-Humans can hear between 64-23000hz
-Dogs can hear between 67-45000hz
-Dolphins can hear between 75-150000hz
6How do vibrations travel through the ear?They travel through the ear canal, to the eardrum into the bones in the middle of the ear, then into the cochlea, the cochlea converts sound energy into electrical energy this is then
sent through into the brain through the nerve (auditory nerve)
7List some ways in which hearing loss can occur-Ear is blocked by wax.
-Ear Drum Bursting
-Middle Ear gets infected
-nerve cells in cochlea don't work
-Older People have tiny bones which do not vibrate.
-Cochlea is damaged.