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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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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PhysicsScientists 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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Health & MedicineHeaded 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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Health & MedicineExplainer: 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 -
PhysicsExplainer: What are gravitational waves?
Albert Einstein had predicted that large catastrophes, like colliding black holes, should produce tiny ripples in the fabric of space. In 2016, scientists reported finally detecting them
By Christopher Crockett and Andrew Grant