Syllabus Aims…
3.3 know the definitions of amplitude, wavefront, frequency, wavelength and period of a wave
3.4 know that waves transfer energy and information without transferring matter
3.5 know and use the relationship between the speed, frequency and wavelength of a wave:
wave speed = frequency × wavelength
v = f × λ
3.6 use the relationship between frequency and time period: frequency = 1/time period
f = 1/T
3.7 use the above relationships in different contexts including sound waves and electromagnetic waves
3.2 explain the difference between longitudinal and transverse waves
3.9 explain that all waves can be reflected and refracted.
3.8 explain why there is a change in the observed frequency and wavelength of a wave when its source is moving relative to an observer, and that this is known as the Doppler effect (May be covered in Y10)
Resources…
- Use this PowerPoint for a quick review..3 Waves Part B Properties
- Doppler Effect
Video Resources…
Wave Properties: This video explains the basic idea of a “waveform” and ripple tank to show “displacement” or amplitude over a period of time “T” with equations…
Period / Frequency: This video shows you how to do calculations for waves…
Longitudinal & Transverse: A super clear explanation of all the basic labels for wave and T and T waves.
String Waves: This is the required GCSE practical for AQA which is a way to work out the Speed of a wave on a string.
Doppler Shift: Example how how it sounds!
Doppler Shift: This shows now it works with compression or expansion of wave forms or a shift in wavelength
Properties of Waves - Exploring Wave Motion (1/5)
(Part 1 of 5)
Playlist link - https://www.youtube.com/playlist?list=PLFE829A78F461BD20
Transcript link - http://media-podcast.open.ac.uk/feeds/fsc-exploring-wave-motion/transcript/fsc03.01.pdf
Open Learn related content:
Physics: https://www.open.edu/openlearn/science-maths-technology/science/physics-and-astronomy/physics
Light: Wave-particle duality: ...https://www.open.edu/openlearn/science-maths-technology/science/physics-and-astronomy/physics/light-wave-particle-duality
What's so exciting about gravitational waves being discovered? : https://www.open.edu/openlearn/science-maths-technology/science/physics-and-astronomy/physics/whats-so-exciting-about-gravitational-waves-being-discovered
Study Q64 BSc (Hons) Natural Sciences (Physics)
http://www.open.ac.uk/courses/qualifications/q64-phy
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Extension Ideas…
- Seismic Waves Extras