sound waves

Atlanta Motorsports Park | Fast Forward

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We went to the birthplace of NASCAR to visit a brand new country club for car lovers. That’s right. Instead of a golf course, they have a racetrack. In addition to taking a look back at the area's rich NASCAR history, Teachable Moments include a detailed look at Newton's Second Law of Motion, and an explanation of sound basics, including how sound waves dissipate over distance.

Sperm Whale vs. Giant Squid

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Join the Kratt brothers for the never-before-seen deep sea creature battle between the Giant squid and the Sperm whale. Viewers learn that the Giant squid has an eye the size of a basketball, and that if a whale is in trouble, it will send out a distress call, using echolocation, for other whales to come and help!

Volleyball

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Whether Brittney and Maggie are bumping, setting, or spiking, volleyball is their favorite game. Like any team activity, communication really helps. Sharing information and cheering on their teammates guides and motivates everyone during this lightening-fast game. But how much is too much? Their DragonflyTV query is this: Is talking on the court helpful or just plain distracting?

Teachable Moment: Acoustic Doppler | Fast Forward

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Do you want even more accuracy in your CFS reading? If so, an Acoustic Doppler Current Profiler might be what you need. Here’s why.

Radiologist | Great Job!

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Take a look at some fascinating images of the heart along with Dr. Deborah Kwon, a Cardiac Radiologist at the Cleveland Clinic. She looks closely at ultrasounds, MRIs, & CT scans to diagnose problems.

Echolocation Location

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Join the Kratt brothers on the bottom of the ocean with a group of dolphins which are using echolocation to search for food. Viewers learn that echolocation provides sound images so detailed that a trained dolphin can tell the difference between a nickel and a dime -- even when they are buried in mud!

Glass Breaking with Sound

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Learn about resonance in this video adapted from the Encyclopedia of Physics Demonstrations. A demonstrator taps a glass beaker to find its natural frequency of vibration and then sets an oscilloscope and amplifier to produce a loud sound at that same frequency. The resonance created by exposing the beaker to the sound wave forces the glass to vibrate and distorts the shape of the beaker. The amplitude of the sound wave from the speaker is increased until the oscillation of the beaker exceeds the elastic limit of the glass and the beaker breaks.

Physics Chapter 12, Lesson 02 - Sound Intensity and Resonance

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Sound intensity, threshold of hearing, relative intensity equation, decibel, resonance

Engineering the Next Generation of Urban Buildings | Treasures of New York: “The Jerome L. Greene Science Center”

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Learn how engineers use the engineering design process to respond to inaccessible bedrock, noisy subways, and more inthis video from Treasures of New York: “The Jerome L. Greene Science Center.” In the accompanying classroom activity, students use the engineering design process to design a soundproof building.

Additional support materials are available, including discussion questions, teaching tips, and a handout. For more resources from Teaching Engineering in New York, check out the collection page.

Sound and Solids: Listening Stick

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Though air is the most common medium through which we hear sound, the vibrations that cause sound are transmitted through other substances as well. In fact, most solids and liquids conduct sound waves more efficiently than air and other gases do. Need to see it to believe it? Watch this video segment adapted from ZOOM as cast members test the sound-conducting qualities of a yardstick, a baseball bat, and a golf club. This video is available in both English and Spanish audio, along with corresponding closed captions.

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