Electromagnetic Project :-) by Kelsey Kreuder https://padlet.com/kreudkel1/dudhggsy5qfn Made with swagger by Kelsey Kreuder, Emily Shafer, and Jayden Foss en-us 2019-05-14 19:25:49 UTC 2024-07-14 18:09:18 UTC hello@padlet.com https://imgglb.padletcdn.com/v13/image?t=g_auto&url=https%3A%2F%2Fpadlet.net%2Ficons%2Fpng%2F1f608.png CRT TVs- kreudkel1 https://padlet.com/kreudkel1/dudhggsy5qfn/wish/360509861 2019-05-15 18:56:21 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/360509861 Satalite TVs/ Radios kreudkel1 https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361304963 2019-05-17 19:09:17 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361304963 What is the overall design and what is the purpose of this device? kreudkel1 https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361308250 The cathode and a pair (or more) of anodes
phosphor-coated screen conductive coating inside the tube to soak up the electrons that pile up at the screen-end of the tube
In this diagram, you can see no way to "steer" the beam -- the beam will always land in a tiny dot right in the center of the screen.
This is a television and it televises things.

]]> 2019-05-17 19:22:23 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361308250 How does the device work? Explain using physics principles. kreudkel1 https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361308378 Phosphor: any substance that emits light when in contact with radiation, such as UV or a beam of electrons. When these electrons come in contact with the phosphor atoms, it gains energy. When the energy leaves the atoms, particles, or photons, are ejected, causing visible light. The shadow plate metal plate with tiny holes, placed so that the electron beam only illuminates the correct phosphors. Beams of electrons are pointed in certain directions and displays the correct colors because of the plate. (photoelectric effect)]]> 2019-05-17 19:23:04 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361308378 Diagram kreudkel1 https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361308899 Colors in middle - electron beams
Blue line - phosphor-coated screen  
Dashed line - Shadow mask (metal plate with tiny holes)
]]> 2019-05-17 19:25:25 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361308899 How would society be different if never created? (include details about what other things could take its place) kreudkel1 https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361308996 Life wouldn’t be too fun if the CRT TV was never created, if we had never made the television we would never have seen the presidential election of 1960 between Kennedy and Nixon, or when man first landed on the moon.]]> 2019-05-17 19:25:48 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361308996 How it works shafeemi https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361553864 The electromagnetic waves in the air are radio waves. These waves are sent through an antenna (a metal conductor) and when the waves travel, it is a current of electrons wiggling their way through the air at the speed of light. When this stream finds the receiver (another antenna), the signal/wave bounces off the dish and into the feeder. The feeder translates the signal into sounds and words on a radio by sending the signal through a small coil of long wire (around an iron-like core) and into a speaker.]]> 2019-05-19 22:59:04 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361553864 Also... shafeemi https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361554127 Depending on the antennas, ( FM or AM radios ) FM picks up the electric part of the wave, while AM picks up the magnetic part of the wave.]]> 2019-05-19 23:02:16 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361554127 How would society be different if never created? shafeemi https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361555560 If this device was never created we may not have most of the technology we have today. We definitely would not have the same type of radios or television. And because of these major technologies, we were unable to advance and make more and newer technology]]> 2019-05-19 23:15:06 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361555560 Overall Design kreudkel1 https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361574882 The electromagnetic waves in the air are radio waves. These waves are sent through an antenna (a metal conductor) and when the waves travel, it is a current of electrons wiggling their way through the air at the speed of light. When this stream finds the receiver, the signal/wave it bounces off the dish and into the feeder. The feeder translates the signal into sounds and words on a radio by sending the signal through a small coil of long wire (around an iron-like core) and into a speaker.

]]> 2019-05-20 01:25:32 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361574882 Diagram kreudkel1 https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361575127 2019-05-20 01:26:28 UTC https://padlet.com/kreudkel1/dudhggsy5qfn/wish/361575127