8 l sound and hearing (whs)

40 %
60 %
Information about 8 l sound and hearing (whs)
Education

Published on March 31, 2014

Author: PreetiGhosh1

Source: slideshare.net

31/03/14 Sound and HearingSound and Hearing W Richards Worthing High School

31/03/14 Speed of soundSpeed of sound The speed of sound in air is around 330 m/s. What happens when sound travels through different materials? 0 1000 2000 3000 4000 5000 Air Water Brick Iron Material Speed of sound (in m/s) Conclusion – the denser the material, the faster sound travels through it

31/03/14 Making SoundsMaking Sounds A sound is made when an object or material VIBRATES. Take, for example, a guitar. To make a sound with a guitar a string has to vibrate. We can raise the pitch of the sound a guitar makes by doing three things: 1) _________ the length of the string 2) _________ the string 3) Using a _________ string We can make the sound louder by ________ the string harder Words – tightening, thinner, increasing, plucking

31/03/14 Using an oscilloscopeUsing an oscilloscope 1) Quiet sound, low frequency: 2) Quiet sound, high frequency: 3) Loud sound, low frequency: 4) Loud sound, high frequency:

31/03/14 How sound travels…How sound travels… As we know, sound waves are formed when something vibrates. But how does the sound reach our ears? 1) An object makes a sound by vibrating 2) The vibrations pass through air by making air molecules vibrate 3) These vibrations are picked up by the ear Air molecules

31/03/14 How does the ear work?How does the ear work? 1) Sound waves are “funnelled” into the ear by the pinna 4) These vibrations are turned into electrical signals in the cochlea 2) These vibrations make the ear drum vibrate 3) These vibrations make the ear bones vibrate 5) The electrical signals are then sent to the brain

31/03/14 How does the ear work?How does the ear work? 1) Sound waves are “funnelled” into the ear by the pinna 4) These vibrations are turned into electrical signals in the cochlea 2) These vibrations make the ear drum vibrate 3) These vibrations make the ear bones vibrate 5) The electrical signals are then sent to the brain

Add a comment

Related presentations

Related pages

Slide 1 - HaydockScience - home

Sound and Hearing Speed of sound Making Sounds Using an oscilloscope How sound travels ... 5/8/2003 7:16:58 AM ... Company: WHS Other titles: Arial ...
Read more

8L: Sound and hearing - Andy Darvill's Science site: Home

8L: Sound and hearing . ... (Speed of sound = 330 m/s) ? ... The usual range of human hearing is from ? 20Hz to 18KHz ?
Read more

Hearing - Wikipedia, the free encyclopedia

In some instances it can also lead to auditory hallucinations or more complex difficulties in perceiving sound. Hearing ... degrees of hearing loss: [7] [8]
Read more

8L Sound and Hearing Multiple Choice Test

8L Sound and Hearing Multiple ... in space B space is very cold and that deadens sound C spacesuits stop you hearing anything D there is ... 8 9 Multiple ...
Read more

8L Sound & Hearing mind map by David Watkins on Prezi

8L Sound & Hearing mind map. No description by David Watkins on 26 April 2013 Tweet. Comments (0 ... Sound and hearing Measuring Sound Mind map for
Read more

Bingo - 8L Sound & Hearing by CSnewin - UK Teaching ...

Bingo - 8L Sound & Hearing. CSnewin 4.5 2. ... Year 8 Mastery- Waves and Electricity- Lesson 1. Transverse waves; GCSE AQA Physics - Ultrasound, ...
Read more

Unit 8L Sound and hearing - Oxfordscience - home

Unit 8L: Sound and Hearing _____ Q1: Sound words . 2 Q2: Drawing sound waves . 3 Q3: Comparing speeds . 4 Q4: The ear . 5 Q5: Loud sounds ... (8 down) thunder.
Read more

8L Summary Sheets - HAGRYear 8 Science - Home

8L Summary Sheets Sound and hearing ... Adapted from Exploring Science QCA Copymaster File 8 © Pearson Education Limited 2003 . Title: Microsoft Word ...
Read more