Ian and his family are on holiday near Loch Ness. Find out about the Loch Ness monster, and learn about light and reflection.
Students determine the refractive index of a liquid with a simple technique using a semi-circular hollow block. Then they predict the refractive index of a material (a Pyrex glass tube) by matching it with the known refractive index of a liquid using the percent light transmission measurement. The homemade light intensity detector uses an LED and multimeter, which are relatively inexpensive (and readily available) compared to commercially available measurement instruments.
In this lesson, students choreograph a dance figure by creating a dance graph with descriptions of rotation, reflection, and translation; perform it for their classmates; and translate a classmate's dance map into a performance. Media resources and teacher materials are included.
Mister Chris sings a song that honors the passing day and all we've experienced. We express being thankful for the variety of different feelings we felt throughout the day and get ready for the sun to set. This activity invites reflection and the tradition is very comforting to children (and maybe all ages). [1:00]
This is the first lesson of this unit to introduce light. Lessons 1-5 focus on sound, while 6-9 focus on light. In this lesson, students learn the five words that describe how light interacts with objects: "transparent," "translucent," "opaque," "reflection" and "refraction."
Demonstrates how to use an interactive tool to find the reflection of a quadrilateral on a Cartesian grid. [1:48]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Explore bending of light between two media with different indices of refraction. See how changing from air to water to glass changes the bending angle. Play with prisms of different shapes and make rainbows.
Manipulate variables and measure angles as light is refracted in this interactive simulation.
The behavior of light waves is introduced and discussed. Also, polarization, color, diffraction, and interference are introduced and discussed thoroughly as supporting evidence of the wave nature of light.
The law of reflection is discussed and explained, accompanied by an animation depicting this law. Includes a list of links to detailed information about certain types of reflections.
A simulation investigating why a diamond shines by looking at refraction, reflection, and total internal reflection.
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Explore how to reflect geometric figures across a coordinate plane in this tutorial video. [5:55] Take a quiz to assess learning.
This video tutorial [3:41] demonstrates how to reflect a geometric figure on a coordinate plane. Students can check their understanding with an assessment.
How does energy flow in and out of our atmosphere? Explore how solar and infrared radiation enters and exits the atmosphere with an interactive model. Control the amounts of carbon dioxide and clouds present in the model and learn how these factors can influence global temperature. Record results using snapshots of the model in the virtual lab notebook where you can annotate your observations.
Provides a discussion of curved mirrors and ray diagrams. Shows and explains the process of drawing a ray diagram to determine the image location, size, and orientation.
Demonstrates how to reflect points across the x- or y- axis in a coordinate grid. [3:35]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Students will explore reflection using hand mirrors and a laser pointer in this competitive activity.
This exercise in reflective listening is designed to be done with a partner. Instructions are tailored to classroom use, complete with assessment sheets. There is also quite a bit of background material for those doing the exercise. SL.9-10.3 Eval Presentation
Use your knowledge of physics concepts like electricity, reflection, magnetism, etc. to complete interactive online puzzles.
Students apply everything they have learned about light properties and laser technologies to designing, constructing and presenting laser-based security systems that protect the school's mummified troll. In the associated activity, students "test their mettle" by constructing their security system using a PVC pipe frame, lasers and mirrors. In the lesson, students "go public" by creating informational presentations that explain their systems, and serve as embedded assessment, testing each student's understanding of light properties.