Microwaves

→ Found next to radio waves.

→ Have a shorter wavelength and a higher frequency compared to radio waves.

→ Commonly wed in satellite communications, Radar, and for cooking (microwave oven).

• Due to its ability to penetrate the Earth’s atmosphere, it can be transmitted through an

antenna to a satellite.

• Signal is amplified and is re-transmitted to another antenna in another part of the planet.

• Radio detection and ranging

• used for detecting and locating objects at a considerable distance.

• uses microwaves since it has a shorter wavelength compared to radio waves.

• A microwave signal is transmitted by an antenna.

• Once an object is present, some of those signals will be transmitted back to a receiver which will then locate the distance of the object.

• Microwaves inside a microwave oven heats food by agitating the water molecules within the food.

• Once they are moving, they create a molecule friction which in turn creates heat that will initially cook it.