Radio+Waves

Radio Waves Radio waves are created by a electrical current going through a metal things with a spring like thing around it to create a magnetic field.

Questions · How do radio waves work things? · What impact has the radio waves on our lives? Statements · Radio waves work in many things. Would things be able to work without radio waves? Many things like internet phones, microwaves, radios, radars, satalites, some telescopes and remote control toys won’t be able to work because they all rely on radio waves in some way.

Why do they use radio waves in things? Radio waves work in things because it is much more convenient, you don’t need a wire or anything. It makes flying and sailing much safer because you can use radar and see what is aound you.

How do radio waves work in things? The transmiter sends a radio wave at a frequency and the thing will be receiving that frequency. When the signal is recieved it turns into a command like turn up the volume or stop. Microwaves send out radio waves which make the water in the food vibrate which causes heat. TV, phones, internet and radio use radio waves and turn into information and images. Radars use radio waves to see whats around them. It sends out radio waves and the waves that bounce back you know that there is something there. Some stars send out radio waves natually and some telescope/dish receives these radio waves

What things is radio waves used? Internet, phones, microwaves, remote control toys, radios, telescopes, satalites, some weaponary, garage door openers, wireless mouses,security and radars all use radio waves.

Is radio waves used in things that can harm us? Radio waves aren’t harmful in many ways, it can create blindness and burn skin like if you use a lasers.

· Radio Waves have had an impact on our lives. When have radio waves been used in our everyday lives? Radios have been used in Australia 1923, internet was first in Australian in 1989, telephone was introduced in 1854.

What impact has it made? Radio Waves has made cooking faster, has made communication quicker, made things safer,do things we don’t want do, find more about space, entertained us, has caused deaths, saved people from death, made people annoyed, has made people arrested and the list could go on for a while.

Why do we use radio waves in our everyday lives? It is much easier than using few thousand km of wiring or doing something for us instead of doing things manually and it makes things safer.

Do radio waves make an impact on everyone? All countries have telephone, internet, radio and the other things but some poorer countries in Africa and North Korea which only the government can have internet.

Without radio waves what would we have to do instead? We would probably use mail more, we would be walking up to the TV to change the channel, there wouldn't be internet so no downloading, youtube, multiplayer games.  Evolution Radio wave was predicted in 1865 by James Clerk Maxwell. In 1887 Henry Hertz tested this. In 1897 Nikola Tesla said radio waves can be used to send information. He later developed remote controls. On 1900 Reginald Fessenden sent the first message using radio waves. In 1920 made the amplifying vacuum tubes which made a stronger signal, this is the modern radio.

Random Infomation

A radio wave is a an electric charge. You can create one by getting a battery and a coin and pushing them together. Radio Waves go at the speed of light and it will keep on going until something stops it. For radios you tune it into a frequency and it will receive only that frequency and turn into sound. Radio Waves are the longest in the Electromagnet Spectrum. There is x-ray, gamma ultraviolet and others. Radio waves are the longe

st waves which can go from 3m to the size of the earth.



Bibliography These are the websites i used. Wikipedia, mostly Nrao, used only once YahooAnswers, used a few times Youtube, very helpful How Stuff Works, makes understanding this stuff easier



Thank you for watching, radio waves are really confusing. ^.^