MS-PS4-1
Use mathematical representations to describe a simple model for waves that includes how the amplitude of a wave is related to the energy in a wave.
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Science & SocietyHeating up the search for hidden weapons
Using an off-the-shelf camera and an innovative bit of software, a high-school student developed the means to inexpensively detect a hidden weapon.
By Sid Perkins -
EarthExplainer: Seismic waves come in different ‘flavors’
Earthquakes generate several different types of seismic waves, some more damaging than others
By Sid Perkins -
PhysicsDisabilities don’t stop these experts in science and tech
People with disabilities are as varied as the careers some of them pursue in science, technology, engineering and math.
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Health & MedicineScientists Say: Acoustic
Acoustic is an adjective used to describe something involving sound. It’s also a noun that refers to the branch of physics that studies sound.
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PhysicsStrange X-rays point to possible ‘dark’ matter
Scientists have been looking for “dark” matter. It’s supposed to make up most of the universe — but it’s also invisible. X-rays may now point to where some of this weird stuff is.
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PhysicsExplainer: How heat moves
Energy moves through the universe one of three ways: conduction, convection and radiation. Only radiation can occur through empty space.
By Sid Perkins -
PhysicsSpinning black holes may ‘sing’ during a collision
The massive black hole in the movie Interstellar would create a unique gravity-wave signal when gobbling a smaller partner.
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BrainHeaded to a concert this summer? Pack earplugs
Wearing earplugs at concerts and other loud events may prevent hearing loss and permanent ear damage, a new study suggests.
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BrainExplainer: When loud becomes dangerous
Many people don’t realize that sounds — even those of the music they love — can prove harmful when they get too loud.
By Janet Raloff -
PhysicsScientists Say: Wavelength
When something travels as a wave — such as light — scientists can measure it by its wavelength, the distances between the peaks.
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PhysicsScientists Say: Watt
Say Watt? This is a unit used to measure the flow of energy being used.
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PhysicsGravity waves detected at last!
Albert Einstein predicted gravitational waves 100 years ago. Now scientists have detected them coming from the collision of two black holes.
By Andrew Grant