An ocean on fire. Entire islands that rise into the air. Billions of tons of seawater that pour in and out of every cove, bay, and sound all up and down the entire coast — not once a year, not once a month, but twice each day?
Seismic sounds are too low for us hear. The vibrations create frequencies that are too low and wavelengths that are too long to be recognized by our ears. Deep Earth Sounds Surface Waves This Bubbling Earth
Electromagnetic waves are produced by an oscillating electric charge.
As frequency of EM wave decreases, its energy __________.
Which EM waves have the longest wavelength?
What range of the EM spectrum can we detect with our eyes?
Visible Light Visible light
Roy G. Biv
Gamma radiation kills _________.
Which region of the EM spectrum travels the fastest?
Which region of the EM spectrum has the highest frequency?
Which region of the EM spectrum has the longest wavelength?
Do electromagnetic waves travel faster in empty space or gas?