Chapter 11- electromagnetism vocab Flashcards Preview

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Flashcards in Chapter 11- electromagnetism vocab Deck (30):
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Electromagnetic wave

Created by vibrating electric charges . Contains electric and magnetic fields. Can move through a vacuum

1

Photon

Mass-less energy particle that makes up light

2

Gamma rays

Emitted from a decaying atomic nucleus. Wavelength is 100 trillionths of a meter

3

Infrared waves

Waves that change to heat when absorbed. Wavelength ranges from 1mm to 700 billionths of a meter

4

Microwave

Wavelengths that ranges from .1mm to 30 cm

5

Radio waves

Used for communication. Wavelengths are longer than 10 cm

6

Ultraviolet waves

Electromagnetic wage with wavelengths between 400 billionths and 10 billionths of a meter

7

Visible light

Can be detected by the human eye. Wavelengths range from 700 to 400 billionths of a meter

8

X-Ray

Used for medical imaging. A lengths range from 10 billionths of a meter to 10 trillionths of a meter

9

Analog signal

Electric signal whose values change over time

10

Carrier wave

Specific frequency that a radio station is assigned and uses to broadcast signals

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Digital signal

Electric signal with only 2 possible values: on and off

12

GPS- Global Positioning System

System of satellites and ground monitoring stations that enable a receiver to determine its location at or above earths surface

13

Modulation

Process of adding a signal to a carrier wave by altering the carrier waves amplitude, frequency or other properties

14

Transceiver

Device that transmits radio signals at one frequency and receive radio signals at a different frequency, allowing a user to talk and listed at the same time

15

Electromagnetic wave

Created by vibrating electric charges . Contains electric and magnetic fields. Can move through a vacuum

16

Photon

Mass-less energy particle that makes up light

17

Gamma rays

Emitted from a decaying atomic nucleus. Wavelength is 100 trillionths of a meter

18

Infrared waves

Waves that change to heat when absorbed. Wavelength ranges from 1mm to 700 billionths of a meter

19

Microwave

Wavelengths that ranges from .1mm to 30 cm

20

Radio waves

Used for communication. Wavelengths are longer than 10 cm

21

Ultraviolet waves

Electromagnetic wage with wavelengths between 400 billionths and 10 billionths of a meter

22

Visible light

Can be detected by the human eye. Wavelengths range from 700 to 400 billionths of a meter

23

X-Ray

Used for medical imaging. A lengths range from 10 billionths of a meter to 10 trillionths of a meter

24

Analog signal

Electric signal whose values change over time

25

Carrier wave

Specific frequency that a radio station is assigned and uses to broadcast signals

26

Digital signal

Electric signal with only 2 possible values: on and off

27

GPS- Global Positioning System

System of satellites and ground monitoring stations that enable a receiver to determine its location at or above earths surface

28

Modulation

Process of adding a signal to a carrier wave by altering the carrier waves amplitude, frequency or other properties

29

Transceiver

Device that transmits radio signals at one frequency and receive radio signals at a different frequency, allowing a user to talk and listed at the same time