What are facts about electromagnetic waves?
facts about electromagnetic waves. 1) do NOT require a medium. 2) can travel in empty space (vacuum) 3) consist (made of) changing MAGNETIC & ELECTRIC fields in space. Speed of light. c = 300,000,000 m/s. symbol: c units: m/s because it's speed! electromagnetic spectrum. based on WAVELENGTH and FREQUENCY.
What are the hazards of electromagnetic radiation?
- cancer
- alzheimer’s
- parkinson’s
- fibromyalgia
- chronic fatigue
- daily headaches
- brain cancer
- lyme disease
- asthma
- heart problems
How are electromagnetic waves used in everyday life?
- Microwave ovens send microwaves to water/food molecules that vibrate and heat.
- Satellites use these waves to pass easily through the atmosphere and the clouds.
- X-ray waves pass through clothes and flesh hence are used in checking points.
- Waves in form of infrared radiation are behind night vision goggles.
What are 3 examples of electromagnetic energy?
Three examples of electromagnetic energy are visible light (like the kind emitted by the sun), microwaves (like the kind used to warm our food), and X-rays (like the kind used at a doctor's office
Which wave transfers the most energy?
For water waves, those with a high speed and long wavelength (like a tsunami) have the most energy. For electromagnetic waves, speed is constant, so waves with a high frequency and a short wavelength (like X-rays) are the most energetic. For all waves, a greater amplitude means more energy.
Which electromagnetic wave carries the most energy?
gamma raysThe energy of a wave depends on its wavelength: the longer the wavelength, the lower the energy. Therefore, in the electromagnetic spectrum, gamma rays have the highest energy, and long radio waves the lowest.
Which has more energy radio or infrared?
Radio waves have photons with the lowest energies. Microwaves have a little more energy than radio waves. Infrared has still more, followed by visible, ultraviolet, X-rays and gamma rays.