Set: Uber-EM waves set Mark I

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All 83 Terms

Term Definition
Transverse waves Water waves are a type of...
Compression wave Wave that the particles move backwards and forwards in the same direction as the energy transfer
Longitudinal wave Another word for Compression wave
Medium The material through which the waves travel
Wavelength Distance between two crests, or two troughs, or the distance between any two corresponding points on neighbouring waves
Visible light Only wave on the electromagnetic spectrum that can be seen
Electromagnetic spectrum Spectrum of all the different types of electromagnetic radiation
White Light All of the colours of visible light combined
Refraction The bending of Light as it passes from one medium to another less or more dense medium
Rainbow All the colours of visible light seperated by light refracting through water vapor in the atmosphere
Speed of light 3,000,000km/s or 300,000,000m/s
Reflection The bouncing of light off of a medium
Red Colour with the largest wavelength, and the lowest frequency and energy
Violet The colour with the smallest wavelength, and the highest frequency and energy
400-700nm Wavelengths from smallest to largest of visible light
Photon Tiny particle or 'packet' of energy
EM waves Energy manifested by movements in an advancing series of alternate elevations
AM Amplitude modulation
FM Frequency Modulated
Frequency the number of occurrences within a given time period
radio transmitter transmitter that is the part of a radio system that transmits signals
interfere come between so as to be hindrance or obstacle
electromagnetic spectrum The entire range of radiant energies or wave frequencies from the longest to the shortest wavelengths
ionosphere The region of the earth's upper atmosphere containing a small percentage of free electrons and ions
Amplitude the maximum displacement of a periodic wave
Amplitude The amplitude of a wave is the maximum distance that each particle moves away from its usual resting position
Frequency The number of waves passing a point in a space per second
Period Time it tkaes for a wave to pass a point in space
Doppler effect Phenomenon which the sound waves is being squeezed together makes the frequency of the sound you hear different from the actual frequency of the sound when it was made.
Hertz A unit for frequency
Wave speed Frequency × wavelength
Electrogmagentic waves 1) Transverse waves 2) Unable to travel through some substances but travel through a vaccum 3) Speed in air about 300,000,000m/s
Sound waves 1) Compression (longitudinal) wave 2) Travel through all solids, liquids and gases, but are unable to travel through a vaccum 3) Speed in air about 330m/s and 350m/s, depending on temperature
Acoustics The study of how sound is absorbed, transmitted and reflected
Ultrasound The high-frequency sound used in industry and in medicine
ChanJun Park Dunno
Radar Radio Dection and Ranging.
Doppler Effect The change in frequency and wavelength of a wave.
Chrstian Andreas Doppler The inventor of Doppler Effect.
Transmitter Sends out short pulses of microwave radiation.
Duplexer An electronic switch where it transfers the antenna connection from the reciever to the transmitter.
Antenna The dish shaped part of the Radar system.
Reciever Recieves reflected signals.
Display The screen that people look at for the information required.
Doppler Radar Is used to make accurate speed measurements of targets.
FM Radar Transmits continuous signals and rapidly increases f decreases the frequency of the signal at regular intervals.
wavelength the length of one whole wave in meters
frequency the amount of waves passing through one point in one seconds
radar a system that uses radio waves to identify objects
RADAR RAdio Detecting And Ranging
christian hulsmeyer who first made the radar
1904 year the radar was first made
transmitter device lets out radio waves
radar gun used to check speed driving
doppler shift causes waves to bounce off moving object changing the frequency of wave
doppler radar used of weather
Lasers is an Acronym for.... Light Amplification By Stimulated Emission of Raditation
Lasers wavelength 3x(10)7
Laser Frequency (Hz) (10)15 - 10 to the power of 15
Energy per Photon (10)0 - (10)2
Types of Lasers Gas, Chemical, Dye, Solid-State, Metal-Vapor, Semiconductor, Free Electron Lasers
Applications include...... Medical, Industrial, Military uses, Scientific uses
2-5 GHz Frequency of Wireless communication
Spread-spectrum frequency hopping Bluetooth "Hopping" aroung frequencies
1/d2 Inverse square law
industrial, scientific and medical devices ISM devices
10-100 metres Range of WiFi
8 Amount of devices able to be connected to Bluetooth at once
year The amount of radiation recieved by using a mobile phone for 20 minutes is the same as being in Wifi "hotspot" for a ...
radio waves non-ionising radiation include
losing connectivity Wireless allows people to move without...
wires When using wireless devices there is no need to use
Microwave Oven generates Electromagnetic waves (microwaves)
with Microwave oven the commonly used wave frequencey is 2,500 megahertz
Microwave ovens consumes 1100 W of eletricity
Microwave ovens produce 700 W of microwvae engery
Compact Microwave oven are small and are also called portable Microwaves
Medium capacity Microwave oven are the naormal "family" size microwave oven
Large capacity Microwave oven are desighed for cooking big meals
Counter top Microwave oven the most common microwave oven
Built in Microwave oven built into the wall similar to traditional ovens
Microwave wavelength (metres) 10^-4
Microwave frequency (hertz) 10^12

Set Information

Terms 83
Creator jasondenys
Created March 3, 2008
Group Mr d year 10 science
Tags physics, waves, emwaves, electromagnetic
Access Anyone
Edit Creator Only

Description

Combination of sets by XXAMIXX, Hayley, Julian, Eloise, Carly, Natalie, Felicity and Cas

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Most Missed Words

  1. interfere → come between so as to be hindrance or obstacle - 2 misses
  2. Doppler Effect → The change in frequency and wavelength of a wave. - 2 misses
  3. radar gun → used to check speed driving - 2 misses
  4. Compact Microwave oven → are small and are also called portable Microwaves - 2 misses
  5. Compression wave → Wave that the particles move backwards and forwards in the same direction as the energy transfer - 1 miss
  6. Longitudinal wave → Another word for Compression wave - 1 miss
  7. Refraction → The bending of Light as it passes from one medium to another less or more dense medium - 1 miss