8-GA-MS-PS-4.e – Jamal (relationship between density of media and wave behavior)
Click on numbers above to see all images/videos associated with this lesson plan.
1) Bozeman Science: Waves – Andersen introduces the concept of waves. Both transverse and longitudinal waves are described. The relationship between wave speed, wave frequency and wavelength is also included. (For Students and Teachers)
2) Bozeman Science: Light – Andersen describes visible light while discussing the electromagnetic spectrum. A simple description of the eye, optical illusions and lights are also included. (For Students and Teachers)
3) Bozeman Science: Sound – Andersen explains how sound waves are created and perceived. A brief discussion of pitch and loudness are included. A generated sound of varying pitches is also included. (For Students and Teachers)
4) Bozeman Science: Next Generation Science Standards Physical Science Disciplinary Core Idea 4B – Electromagnetic Radiation: In this video Paul Andersen describes some of the properties of electromagnetic radiation. The electromagnetic spectrum varies by wavelength from radio waves to gamma rays. We only see a portion of the spectrum known as visible light. A number of phenomenon (including refraction, emission spectrums, and gamma radiation) are discussed. (For Students and Teachers)
5) Riddz Science: How Sounds Travels Through Different Media: Sound waves must have a medium to travel through – find out how its speed varies through solids and gases. (For Students)
6) Speed of Sound in Different Mediums: Image from pintrest.com: This image is a visual representation of the speed of sound in different mediums.
7) Comparison of wave speed: Image from Essential Physics: This image gives visual and mathematical representations of wave speed and media.
8) Light wave moving from one medium to another: Image from Quora: This image shows a light wave being represented by a single ray moving from air to water and the bending of the light wave (refraction). It demonstrates the optical illusion of a fish being in one location but appearing to be in another.
9) A wave moving through a denser medium: Image from Gemology Project: This image shows the wavelength changing as a wave moves into a denser medium.
The media (i.e. solid, liquid, gas) that a wave travels through effects the speed at which waves travel. The effect that the media has depends on the type of wave that is being evaluated. Students will evaluate the effect that the media has on both light and sound waves. This will be done both qualitatively and quantitatively. Students will look at tables, charts, and diagrams to analyze changes in speed in different media by light and sound waves. Students should make the connection between this phenomenon and refraction.
|TOPIC:||Waves: Light and Sound|
|GA STANDARDS(GSES):||Georgia Standards of Excellence (GSE) DRAFT, S8P4. Sound and Electromagnetic Radiation, e. Properties of Sound||NGSS CORE IDEA:||PS4 Waves and Their Applications in Technologies for Information Transfer, PS4.A Wave Properties, PS4.B Electromagnetic Radiation, Physical Science|
|PRACTICE:||Developing & Using Models|
|CROSSCUTTING CONCEPTS:||Structure and Function|