Radio Waves

Radio Waves

the wavelength is long, low frequency, and uses less energy. They range from length of a football to planet.

Gamma Ray

wavelength short but high frequency and more energy

Heinrich Hertz

proved the existence of radio waves in the late 1880s. He used a spark gap attached to an induction coil and a separate spark gap on a receiving antenna.

Radio stations

change the sound to EM waves & then your __________ changes the EM waves back to sound waves again.

Global Positioning System (GPS)

They measure the time it takes a radio waves to travel from several satellites to the receiver, determining the distance to each satellite

(MAGNETIC RESONACE IMAGING) MRI

Uses Short wave radio waves with a magnet to create an image.

WAVES

The radio astronomy instrument called _______ on the WIND spacecraft recorded a day of bursts of radio waves from the Sun's corona and planets in our solar system

Radio telescopes

look toward the heavens to view planets, comets, giant clouds of gas and dust, stars, and galaxies.