Waves! They are everywhere. The unit on electromagnetic vs. mechanical waves can be so overwhelming for some students just because the vocabulary can be a lot, but no fear! There are so many resources that are available online to help make this unit easier to understand and to explore some of the phenomena that students see on a daily basis.
Where does a rainbow come from?
How does sound get from an instrument to our brain?
How does an X-ray work?
There is so much to explore with electromagnetic vs. mechanical waves!
Ditch the Mechanical vs. Electromagnetic Waves Worksheet with a Digital Interactive Lesson
So, what do electromagnetic and mechanical waves have in common? What are the electromagnetic and mechanical waves differences?
Digital Interactive Lessons are fantastic for students to learn a whole lot of new information but not get overwhelmed.
This particular lesson answers the questions: How are electromagnetic and mechanical waves similar? …and How are electromagnetic and mechanical waves different?
This lesson covers wave energy transfer, electromagnetic and mechanical waves examples, transverse and longitudinal (compressional waves), crests and troughs, compression and rarefaction, the electromagnetic spectrum, the relationship between waves, energy, and matter, and so much more!
This lesson really dives in to help students understand the differences and similarities between these two types of waves using outside resources and graphic organizers to help students get a visual representation to engrave into their brains.
Digital interactive lessons are really great at reducing student cognitive load, and this lesson is no different.
Ditch the worksheets and lectures. Allow your students to work independently or in partners to learn more about waves!
Explore Electromagnetic vs. Mechanical Waves
Once your students really feel comfortable with electromagnetic vs. mechanical waves, their similarities and differences, and all of the science terminology associated with them, it’s now time to explore them deeper!
There is so much more to learn about these two types of waves, and you’ve guessed it, there are digital interactive lessons and activities for these as well! There are so many awesome things to explore!
Properties of Waves
The properties of waves lesson answers the question: what are the four properties of waves? This engaging and no prep lesson dives deeper into amplitude, wavelength, frequency, and wave speed. It’s also a great refresher to review what waves are and mechanical and electromagnetic waves. This lesson focuses on how energy is transferred in waves, not matter, and also, how waves travel at different speeds in different mediums.
Wave Behaviors
This waves behaviors lesson takes mechanical and electromagnetic waves to the next level and discusses many properties that these waves have, either both of them, or at least one of them. This lesson covers reflection, refraction, diffraction, interference, absorption, transmission, scattering, and more!
Electromagnetic Spectrum
This lesson dives deeper into the electromagnetic waves. This lesson particular looks at electromagnetic waves across the spectrum, looking at the wavelengths and at increasing frequency, decreasing wavelengths. This lesson covers radio waves, microwaves, infrared waves, visible light, ultraviolet, x-rays, and gamma rays!
Visible Light Waves
Going even deeper, this lesson looks into the particular band on the electromagnetic spectrum of visible light. This lesson reviews ROYGBIV, visible light waves frequency and wavelength, space and matter, transverse waves, Newton’s prism experiment, transmission, scattering, diffraction, light intensity, and so much more!
The Human Eye and Optics
I’m telling you, we are getting into the details now. Middle school details! Now, don’t forget to explore how our human eyes take in these waves! This lesson reviews how the eye works and goes into the structure and function of the eyes. In addition, this lesson explores optics and how light is used with human vision.
Sound Waves
Now that light waves have been reviewed, let’s not forget sound waves! This lessons discusses how sound waves are longitudinal and how sound waves need a medium to travel! This lesson covers sound waves examples, compression and rarefaction, oscilloscopes, amplitude, loudness, intensity, decibels, frequency, infrasound and ultrasound, reflection of sound waves, echoes, sonar, pitches, and so much more!
How Sound Travels
So, your students know what sound waves are and some of the behaviors of sound waves, but how does sound travel? This lesson covers how sound travels in solids, liquids, and gases. This also goes over how temperature affects the speed of sound.
The Human Ear and Hearing
Just as it’s important to discuss the structures and functions of the human eye, it’s also important to discuss the structures and functions of the human ear and how they respond to sound waves. This lesson covers all of the structures of the ear and also discusses common ear problems such as hearing loss, tinnitus, ear infections, ear barotrauma, and swimmer’s ear.
Electromagnetic and Mechanical Waves Examples using Lab Activities
Within these lessons, it’s crucial to do some hands-on exploring or virtual simulation exploring so that students can explore further.
Here are some ideas for exploring electromagnetic vs. mechanical waves and more!
Waves on a String
This waves on a string simulation is perfect for students to explore amplitude and frequency and how this impacts the waves. It’s an awesome resource to explore.
Slinkys
There are so many YouTube videos that show you how you can use Slinkys to explore waves. You can give a pair of students a slinky, and just have them to explore. Give them instructions to show you a longitudinal and transverse wave. Have them to increase the amplitude and frequency. There are so many possibilities!
I just want to give you a heads up. It can get loud, but as long a students are learning, it’s fine!
Wave Stations
Explore waves in stations. You can do one station at a time or set them up all in a day.
I can’t claim this document, but here are some awesome stations!
Spectroscope
Explore various light sources using a spectroscope. If your school does not have these, first of all, ask! If not, you can always do a Donor’s Choose project.
If that doesn’t work, students can make their own.
Bending Light Simulation
Exploring refraction using another Phet simulation! I cannot claim this either, but here is an awesome resource.
Which activities will you choose to teach electromagnetic vs. mechanical waves?
More Resources exploring the question: How do electromagnetic and mechanical waves compare?
Electromagnetic Waves vs. Mechanical Waves
Help your students master science content!
[…] Teaching waves? You can actually do so many things with this. Slinkys are my favorite! You can also do virtual science experiments as well. Learn more here! […]