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Waves Powerpoint

Transcript: When waves approach the coast and enter shallow water they are refracted and their energy is concentrated on headlands and dispersed in embayments. A sound wave is a kind of wave that can be detected by the human ear. So as we've seen, energy is constantly being transferred through waves. Main objectives Whether it be in ocean waves; from wind through water to rock, or sound waves, from vibration through air and to space. What are ocean waves? What are sound waves? How do ean waves start and stop? How do sound waves start and stop? How is energy transfered regarding waves? The start Ocean waves wouldn't necessarily stop, but the energy their are carrying is put into other things such as the beach. Sound waves come from vibrations. Sound waves move through mediums such as air and water. Ocean Waves Ocean waves generally start from storm and or wind force This makes them start and stop differently ocean waves are the only visible scientific waves The Start This gives them a strong energy push, sometimes, stronger than others. Sound waves technically never stop until they reach space The sound waves get weaker and weaker the farther they go, until the human ear can't hear the noise it makes anymore In conclusion, we discovered that energy's constantly be shifted and moved, and waves are just one carrier of energy. We discovered that our planet is buzzing with energy constantly, more so than we could have ever imagined. Reflection Game show Time!! Transferring Energy Do waves start and stop? Sound Waves The Stop The Stop

Radio Waves

Transcript: How are radio waves made? Radio Waves Television Radio Programs Microwaves Possible Dangers Frequency Range In 1888 Heinrich Hertz discovered radio waves. Their wavelengths are usually too long for our eyes to see. http://www.localhistory.scit.wlv.ac.uk/Museum/Engineering/Electronics/history/radiohistory.htm Abbr. Name Frequencies ELF Extremely Low Frequencies 30 - 300 Hz VF Voice Frequencies 0.3 - 3 kHz VLF Very Low Frequencies 3 - 30 kHz LF Low Frequencies 30 - 300 kHz MF Medium Frequencies 0.3 - 3 MHz HF High Frequencies 3 - 30 MHz VHF Very High Frequencies 30 - 300 MHz UHF Ultra High Frequencies 0.3 - 3 GHz SHF Super High Frequencies 3 - 30 GHz EHF Extremely High Frequencies 30 - 300 GHz https://wiki.oulu.fi/display/SpaceWiki/Radio+wave+frequency+ranges When charged particles such as electrons and protons accelerate by changing their speed or direction, they emit electromagnetic radiation. The long wavelength, low frequency hence low energy form is called radio waves. Size of the wavelength of a Radio Wave Radio Waves Origin of the Radio Wave: "Radio waves have the longest wavelengths in the electromagnetic spectrum. These waves can be longer than a football field or as short as a football." http://science.hq.nasa.gov/kids/imagers/ems/radio.html Examples of Radio Waves

RADIO WAVES

Transcript: Radio Waves Radiowaves in Use The Science behind the Radio Three Interesting Facts about Radio Waves Bibliography http://science.hq.nasa.gov/kids/imagers/ems/radio.html http://www.windows2universe.org/spaceweather/effects3.html Physical Science. Boston, MA: Prentice Hall, 2007 Skurzynski, Gloria. Waves: The Electromagnetic Spectrum. Washington, DC: Publishers Group, 1996 Invisible Universe. Berkeley, CA: University Publishers, 2002 End of electromagnetic spectrum, next to microwaves: very low energy Radio telescopes receive waves created by planets Life Without Radio Waves Communication: television, radio Arthur May Markley Two types of radio wave transmission: amplitude modulation (AM) frequency modulation (FM) Everyday life: garage door openers, remote controllers, RC Toys Aerospace: radio telescope Medicine: MRI machines AM changes amplitude FM changes frequency Radio receiver changes wave into sound FM waves, with higher frequency, travel shorter distances, but less interference Large size of AM waves allows further distance, but more interference Interference from gasoline car ignition Wavelengths about the size of buildings Between 1 meter and 100 km Charged particles inside antenna oscillate and transmit waves Radio waves to submarines Varying frequency: 3kHz to 1 gHz

Radio Waves

Transcript: Radio Waves Task Jefferson Auguste Step 3 Step 2 It has the lowest frequency and the longest wavelength. Lockhart They travel at a speed of light. Naturally occuring radio waves are made by lightning. They are used for fixed and mobile radio communication. They were discovered by James Clerk Maxwell in 1867. Wavelengths long as 1 millimeter to 100 kilometers. Characteristics

PowerPoint Game Templates

Transcript: Example of a Jeopardy Template By: Laken Feeser and Rachel Chapman When creating without a template... http://www.edtechnetwork.com/powerpoint.html https://www.thebalance.com/free-family-feud-powerpoint-templates-1358184 Example of a Deal or No Deal Template PowerPoint Game Templates There are free templates for games such as jeopardy, wheel of fortune, and cash cab that can be downloaded online. However, some templates may cost more money depending on the complexity of the game. Classroom Games that Make Test Review and Memorization Fun! (n.d.). Retrieved February 17, 2017, from http://people.uncw.edu/ertzbergerj/msgames.htm Fisher, S. (n.d.). Customize a PowerPoint Game for Your Class with These Free Templates. Retrieved February 17, 2017, from https://www.thebalance.com/free-powerpoint-games-for-teachers-1358169 1. Users will begin with a lot of slides all with the same basic graphic design. 2. The, decide and create a series of questions that are to be asked during the game. 3. By hyper linking certain answers to different slides, the game jumps from slide to slide while playing the game. 4. This kind of setup is normally seen as a simple quiz show game. Example of a Wheel of Fortune Template https://www.teacherspayteachers.com/Product/Wheel-of-Riches-PowerPoint-Template-Plays-Just-Like-Wheel-of-Fortune-383606 Games can be made in order to make a fun and easy way to learn. Popular game templates include: Family Feud Millionaire Jeopardy and other quiz shows. http://www.free-power-point-templates.com/deal-powerpoint-template/ Quick video on template "Millionaire" PowerPoint Games Some games are easier to make compared to others If users are unsure whether or not downloading certain templates is safe, you can actually make your own game by just simply using PowerPoint. add logo here References Example of a Family Feud Template PowerPoint Games are a great way to introduce new concepts and ideas You can create a fun, competitive atmosphere with the use of different templates You can change and rearrange information to correlate with the topic or idea being discussed. Great with students, workers, family, etc. For example: With games like Jeopardy and Family Feud, players can pick practically any answers. The person who is running the game will have to have all of the answers in order to determine if players are correct or not. However, with a game like Who Wants to be a Millionaire, the players only have a choice between answers, A, B, C, or D. Therefore, when the player decides their answer, the person running the game clicks it, and the game will tell them whether they are right or wrong.

Radio Waves

Transcript: Radio Waves What are Radio Waves? All electromagnetic waves travel at 300,000 kilometers per second, which is the speed of light. How do they Affect Our Lives? They are used in our Radios Iphones TVs Wireless Interent Medical Devices Most communication Short Waves carry higher levels of radation Examples X-Rays which can cause cancer They should be used in small amounts and are dangerious if not used correctly Today we rely on Radio Waves to do things from heating our food communicating with others helping detect cancer The End! Thanks Beth Belanger Radio waves are used for the transmission of radio and television signals the microwaves used in radar and microwave ovens. Radio Waves travel through the use of elections which affect the electromagnetic spectum The longest waves are over 100 kilometers long; the shortest are less than a billionth of a millimeter long. (cc) photo by Metro Centric on Flickr Short Waves are more excited -stronger less area to travel more concentration doodles All Wavelenghts are able to travel through the Air and through light notes Budapest San Francisco Good and Bad! Microwaves used in radar and microwave ovens are also radio waves. The electromagnetic spectrum is the complete range of radiation sent out by electrons. It is given off in tiny packages of energy called photons, which can be either particles or waves Food For Thought: If radio waves have radation and should be used in small amounts what affects do cell phones have?! Notes Stockholm (cc) photo by jimmyharris on Flickr (cc) photo by Franco Folini on Flickr Double click to crop it if necessary Lenghts! If you are not careful tho Radio Waves Can Cause Cancer and have lasting affects Additionally many medical devices emit radio waves. How do they affect US? outlook Besides in our social lives Radio Waves Are very dangerious if not used carefully photo frame example- ultriviolet rays Place your own picture behind this frame! (cc) photo by Metro Centric on Flickr details Assets map Important Details

RADIO WAVES

Transcript: Radio waves are in the increasing part of of the electromagnetic spectrum ranging from 10mm-100m. It has the highest frequency of the spectrum. Radio waves have the longest wavelenghts in the elctromagnetic spectrum. No all radiation is not harmful there are actually "good" forms of radiation such as x-rays and UV rays. *Microwave *Sound *Video * Television Electromagnetic Placing: Characteristics: Key Facts: Who uses the electromagnetic spectrum at work? *http://science.hq.nasa.gov/kids/imagers/ems/xrays.html *http://www.tvlane.edu/-sanelson/eens211/xray.htm *http://hyperphysics.phy.astr.gsv.edu/hbase/ems3.html *http://science.hq.nasa.gov/kids/imagers/ems/xrays.html *http://www.tvlane.edu/-sanelson/eens211/xray.htm *http://hyperphysics.phy.astr.gsv.edu/hbase/ems3.html * Yes all of our sources agreed on the wavelength ranges. *peolple in different fields have different definitions for the range of wavelengths for each region of the spectrum depending on their field of work Electromagnetic Spectrum Project - Radio Waves By: Anique Brown, Jemea Woods, and Jacob Abshire The Earth's Atmosphere Sources: The Earth's atmosphere protects living organisms because it lets in some UV rays and keeps some out. When Scientist talk about Electromagnetic Radiation they are describing radio Waves, Microwaves, and Visible Light. Used in our everyday life: * James Clerk Maxwell a Scottish physicist predicted the existence of radio waves in the mid-1800s. *Karl Jansky discovered naturally occurring radio waves coming from cosmic sources in the1930s. *The Milk Way was a strong source of radio emission was the birth of radio astronomy. Describing "Electromagnetic Radiation" * Physicist *Doctors *Astronomers *Biologist Wavelength Ranges and Sources Is all radiation harmful?

Radio Waves

Transcript: Economical factor Pic. 8 Mobile phone Pic. 2 Lightning [2] Group work - http://pl.wikipedia.org/wiki/Fale_radiowe (access 16-09-2012) Social factor - Spreading information Media and communication Pic. 6 Radio telescope Radio waves for human Radio Waves [3] Author: A. Martinez-Sansigre - http://missionscience.nasa.gov/ems/05_radiowaves.html (access 16-09-2012) [1] Group work - http://en.wikipedia.org/wiki/Radio_waves (access 16-09-2012) Picture 1. Unknown author - http://zebu.uoregon.edu/~imamura/122/lecture-2/em.html Picture 2. Unknown author - http://pl.wikipedia.org/wiki/Burza Picture 3. Unknown author - http://artsus-kornelia.blogspot.com/2012/07/zorza-w-kamieniu-i-w-koncu-cos-dla_10.html Picture 4. Unknown author - http://www.geograph.org.uk/photo/1092892 Picture 5. Unknown author - http://rebreatherpro.typepad.com/.a/6a00e54fbce2378833016761616f22970b-popup Picture 6. Unknown author - http://gdansk.naszemiasto.pl/artykul/676948,radioteleskop-w-borach-tucholskich,id,t.html Picture 7. Unknown author - http://lixenyo.com/radio-internetowe/audycja-czyli-co-i-jak/ Picture 8. Unknown author - http://power-sms.pl/podstrona4.php Natural: lightnings, geological phenomena in the interior of the Earth, auroras, stars, radiogalaxies [2] Radio telescopes: [4] Author: "Feler404" - http://www.naukowy.pl/na-jakiej-zasadzie-dziala-radio-telewizor-vt8203.htm (access 16-09-2012) Pic. 4 Radio transmitter Sources of radio waves Pic. 1 The electro magnetic spectrum Pic. 3 Aurora What are radio waves Pic. 7 Radio Non-natural: intentional: a radio transmitter interferences: commutator motors, ac systems (50/60 Hz, 400 Hz), contactors, computers, microwaves, power converters, inverters and controllers thyristor, induction and arc furnaces, welding machines, electric ignition of thermal engine, discharge lamps, nuclear explosion (electromagnetic impulse). Radio and TV: Mobile devices: - type of electromagnetic radiation -the longest wavelengths and the shortest frequency Pic. 5 Nuclear explosion Usage of radio waves Bibliography

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