Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu
-
Upload
eleanor-alexander -
Category
Documents
-
view
215 -
download
1
Transcript of Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu
![Page 1: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/1.jpg)
WavesWaves
http://www.youtube.com/watch?v=Xy_9bx6U8_0&feature=relmfu
http://www.youtube.com/watch?v=Xy_9bx6U8_0&feature=relmfu
11
![Page 2: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/2.jpg)
Objectives
To develop understanding of children difficulties associated with waves
To use a range of resources available for the teaching of waves
To discuss some teaching strategies within the topic
![Page 3: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/3.jpg)
Waves in the news
http://www.bbc.co.uk/news/world-asia-pacific-14967535
http://www.bbc.co.uk/news/science-environment-15017484
http://www.bbc.co.uk/nature/15274875
![Page 4: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/4.jpg)
National Curriculum KS3
![Page 5: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/5.jpg)
2006 Waves at Key Stage 4
Energy, electricity and radiations 7) In their study of science, the following should be
covered:
a. Energy transfers can be measured and their efficiency calculated, which is important in considering the economic costs and environmental effects of energy use
b. Electrical power is readily transferred and controlled, and can be used in a range of different situations
c. Radiations, including ionising radiations, can transfer energy
d. Radiations in the form of waves can be used for communication.
![Page 6: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/6.jpg)
![Page 7: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/7.jpg)
Specifications
Look at the waves content of the Physics GCSE specifications provided, OCR and AQA
What are the similarities between them? What are the differences? Does this matter?
![Page 8: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/8.jpg)
A pupil is in a dark room and cannot see anything. When the light is turned on in the room she sees a book on the table. How is she able to see the book?
![Page 9: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/9.jpg)
Children’s ideas about vision
![Page 10: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/10.jpg)
Seeing…
![Page 11: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/11.jpg)
![Page 12: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/12.jpg)
Theories
1. Light rays travel from our eyes to the objects to enable us to see them
2. Light rays are produced by a source, reflect off objects and go into our eyes so we can see them
A. Light travels in straight linesB. We can see at night when
there is no sunC. Sunglasses are worn to
protect our eyesD. If there is no light we can’t
see a thingE. We ‘stare at people’, ‘ look
daggers’, and ‘catch other people’s eye’
F. You have to look at something to see it
![Page 13: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/13.jpg)
Laser demo
![Page 14: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/14.jpg)
KS4 Waves question pairs
Find your partner
![Page 15: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/15.jpg)
A selection of practical activities or demonstrations from KS3/4/5
Slinky springRipple tankRayboxs; reflection, refraction, TIR, spectrum, colour filters
Oscilloscope, signal generator, microphone, loudspeaker
Pinhole camerasUVHearing with 4 phones
![Page 16: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/16.jpg)
Questioning activity
What’s the difference between reflection and refraction?
What’s the difference between interference and diffraction?
What’s the difference between a light wave and a sound wave?
What’s the difference between a compression wave and transverse wave?
![Page 17: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/17.jpg)
Multimedia tools
Audacity: http://audacity.sourceforge.net
Multimedia Science School
Multimedia WavesMultimedia SoundCrocodile Physics/Yenka
Applets: http://www.cbu.edu/~jvarrian/applets/waves1/lontra_g.htm
http://www.phys.hawaii.edu/~teb/java/ntnujava/emWave/emWave.html
http://micro.magnet.fsu.edu/primer/java/interference/doubleslit/index.html
![Page 18: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/18.jpg)
Youtube videos:http://www.youtube.com/watch?v=v9Wdf-RwLcs
http://www.youtube.com/watch?gl=GB&hl=en-GB&v=ofESdVdX-fY
![Page 19: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/19.jpg)
Tony’s demos
1.Melde’s experiment
2.Diffraction grating
![Page 20: Waves Xy_9bx6U8_0&feature=relmfu Xy_9bx6U8_0&feature=relmfu](https://reader035.fdocuments.us/reader035/viewer/2022070409/56649ea05503460f94ba3dbc/html5/thumbnails/20.jpg)
Microwave oven
Hot spot about 6cm apart
c=f
(= 0.06 2)
=2450106 0.12
=294106
=2.9108ms-1