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Unit 2 revision 4

4th set of revision cards - Electromagnetic waves

QuestionAnswer
Which type of electromagnetic wave is used in TV remote controls infrared
Which type of electromagnetic wave is used in fibre optic cables (visible) light
What is the correct term for the number of electromagnetic waves that a source produces every second? frequency
What is the correct sequence of the electromagnetic spectrum starting with radio waves? Radiowaves-Microwaves-infrared-visible light-ultra violet-x-rays-gamma rays
What is frequency measured in? Hertz (Hz)
What do waves transfer from a source to other places without any matter being transferred? energy
At low frequency is the wavelength long or short? long wavelength
At high frequency is the wavelength long or short? short wavelength
The higher the frequency the higher the .... energy
Which type of electromagnetic wave is used in TV and radio? radiowaves
Which type of electromagnetic wave is used in mobile phones, satellite TV and cooking? microwaves
Which type of electromagnetic wave is used in sunbeds? UV
What type of electromagnetic waves are not usually used in the home as they can damage the body but can be used in medicine? X-rays and radiotherapy
Name the type of energy that is transferred by longitudinal waves sound
What is the height of a wave is called? Amplitude
Created by: carolinemorgan