![]() ![]() I personally appreciate their Powerpoint and worksheet. TeachEngineering has a lesson plan that covers waves and wave properties (including RRD). Lesson Plans Related to Reflection, Refaction, and Diffraction I love this idea to have students write down and draw (see other examples of incorporating writing into STEM) what they see when observing a singer shatter a glass (and talk to your students about how wave reflection ties into it).Quizlet to learn wave vocabulary (including RRD).Activities Related to Waves Changing Directions This is my favorite book on the topic, and it is available through Amazon or often local bookstores. The book avoids complicated mathematics, and instead, uses basic analogies to guides readers’ learning about optics and light. Most of the books on this list have been more targeted towards kids, but if you’re an adult learner, then this is the book for you. Seeing the Light: Optics in Nature, Photography, Color, Vision, and Holography This Hands-On Science book is an easy-to-understand guide to do 20+ experiments at home. However, it’s still an excellent book to pick up to add to your “young learner’s STEM library”. The only downside is that the illustrations do not add as much to the book as they should have been able to. Ferrie does a great job introducing physics concepts to young children (ages 4+ can begin to understand the material presented here). Let’s Ride a Wave is one of several books in a series authored by Chris Ferrie. The descriptions of the depicted items may not be sufficient to greatly increase an adult’s knowledge, but they are perfect for introducing kids to physics (specifically light). It accomplishes that via a series of phenomenal images. This one aims for audiences beyond just children. Light: The Visible Spectrum and BeyondĪnother book that goes beyond just RRD. It covers physics topics in addition to reflection, refaction, and diffraction: solar energy, photon particles, and light scattering. The target audience for this book is 6-9 years old. I think these books can be helpful for kids of different ages to learn about waves reflecting, refracting, and diffracting: Light Waves Another practical example of diffraction is noise-cancelling headphones, which use a principle called destructive interference (interference is a result of diffraction) to reduce background noise.įor a fuller explanation, I recommend Professor Dave’s video on Interference, Reflection, and Diffraction: A common example is waves that hit a boat or other object. Diffractionĭiffraction occurs when a wave encounters an object and subsequently bends around the object. The light enabling your sight is refracted by the water, which causes your eyes to see a distorted image (of the pen, pencil, or whatever object is submerged). ![]() Observers will note that the object (e.g., a pen or pencil) will look bent. One important rule of reaction that can be observed in this example is that the angle of incidence (Theta 1) is always greater than the angle of refraction (Theta 2).Ī common experiment to help kids and adults alike to understand refraction is to submerge an object in a bowl of water. SPM Physics Form 4/Form 5 Revision Notes Blogger Templates / CC BY-SA Unlike reflection, refracted waves continue traveling through the medium they hit. Refraction is the change in direction of a wave (ray) passing from medium to another. Youtube Video showing incident rays and reflected rays: Reflected Ray – the wave/traveling away from the “hit” surface, and now traveling towards the original medium.Angle of Reflection – the angle at which the reflected wave returns towards the original medium.Equal (or Normal) – divides the two rays (incident / reflected) into two equal angles.Angle of Incidence – the angle at which the traveling wave/ray hits a surface. ![]()
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