https://padlet.com/dayi05789/7z1wp4i248r5 en-us 2017-02-27 16:25:35 UTC 2023-06-25 12:31:53 UTC hello@padlet.com dayi05789 https://padlet.com/dayi05789/7z1wp4i248r5/wish/156875461 Radio waves, television waves, and microwaves are all types of electromagnetic waves. They are different from each other in wavelength. Wavelength is the distance between one wave crest to the next.]]> 2017-02-28 21:31:32 UTC https://padlet.com/dayi05789/7z1wp4i248r5/wish/156875461 dayi05789 https://padlet.com/dayi05789/7z1wp4i248r5/wish/156875633 Electromagnetic waves are waves which can travel through the vacuum of outer space. Mechanical waves, unlike electromagnetic waves, require the presence of a material medium in order to transport their energy from one location to another. Electromagnetic waves are created by the vibration of an electric charge. Waves in the electromagnetic spectrum can vary in size from very long radio waves to very short gamma-rays.]]> 2017-02-28 21:32:23 UTC https://padlet.com/dayi05789/7z1wp4i248r5/wish/156875633 dayi05789 https://padlet.com/dayi05789/7z1wp4i248r5/wish/156876136 2017-02-28 21:34:41 UTC https://padlet.com/dayi05789/7z1wp4i248r5/wish/156876136 dayi05789 https://padlet.com/dayi05789/7z1wp4i248r5/wish/156876333 Radio waves have the longest wavelengths in the electromagnetic spectrum. Radio waves do more than just bring music to your radio. They also carry signals for your television and phones. ]]> 2017-02-28 21:35:40 UTC https://padlet.com/dayi05789/7z1wp4i248r5/wish/156876333 dayi05789 https://padlet.com/dayi05789/7z1wp4i248r5/wish/156876777 2017-02-28 21:38:07 UTC https://padlet.com/dayi05789/7z1wp4i248r5/wish/156876777 dayi05789 https://padlet.com/dayi05789/7z1wp4i248r5/wish/156876793 2017-02-28 21:38:13 UTC https://padlet.com/dayi05789/7z1wp4i248r5/wish/156876793 dayi05789 https://padlet.com/dayi05789/7z1wp4i248r5/wish/156876970 Microwaves have wavelengths that can be measured in centimeters. The longer microwaves, those closer to a foot in length, are the waves which heat our food in a microwave oven.  Microwaves have frequencies from about 3 billion cycles per second, up to about 30 trillion hertz and wavelengths of about 30 centimeters to 3 millimeters.]]> 2017-02-28 21:39:13 UTC https://padlet.com/dayi05789/7z1wp4i248r5/wish/156876970 dayi05789 https://padlet.com/dayi05789/7z1wp4i248r5/wish/156877512 Infrared light is between the visible and microwave part of the electromagnetic spectrum. Infrared light has a range of wavelengths, just like visible light has wavelengths that range from red light to violet. Near infrared light is closest in wavelength to visible light and far infrared is closer to the microwave part of the electromagnetic spectrum. ]]> 2017-02-28 21:42:28 UTC https://padlet.com/dayi05789/7z1wp4i248r5/wish/156877512 dayi05789 https://padlet.com/dayi05789/7z1wp4i248r5/wish/156877898 Visible light waves are the only electromagnetic waves we can see. We see these waves as the colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light.
When white light shines through a prism the white light is broken apart into the colors of the visible light spectrum. Water vapor in the atmosphere can also break apart wavelengths when it creates a rainbow.]]> 2017-02-28 21:45:10 UTC https://padlet.com/dayi05789/7z1wp4i248r5/wish/156877898 dayi05789 https://padlet.com/dayi05789/7z1wp4i248r5/wish/156878209 Ultraviolet light has shorter wavelengths than visible light. Though these waves are invisible to us, some insects can see them. 
X-rays have smaller wavelengths and therefore higher energy than ultraviolet waves. Gamma-rays have the smallest wavelengths and the most energy of any other wave in the electromagnetic spectrum. These waves are created by radioactive atoms and in nuclear explosions. ]]> 2017-02-28 21:46:43 UTC https://padlet.com/dayi05789/7z1wp4i248r5/wish/156878209