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Physical Science > Chapter 11 - Electromagnetic Waves > Flashcards

Chapter 11 - Electromagnetic Waves Flashcards

1
Q

consists of a vibrating electric field and a vibrating magnetic field

A

Electromagnetic Wave

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2
Q

Electromagnetic wave carry ________ ________?

A

Radiant Energy

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3
Q

How fast do electromagnetic waves travel?

A

300,000 km/s

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4
Q

Electromagnetic waves travel more _______ in matter

A

Slowly

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5
Q

The speed of an electromagnetic wave depends on…?

A

The material

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6
Q

Electromagnetic waves can behave as particles called…?

A

Photons

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7
Q

Electromagnetic waves with wavelengths longer than 10cm

A

Radiowave

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8
Q

Electromagnetic waves with wavelengths between 0.1 mm and 30 cm.

A

Microwave

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9
Q

Electromagnetic waves with wavelengths between one thousandth of a meter and 700-billionth of a meter.

A

Infrared Wave

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10
Q

The range of electromagnetic waves that you detect with your eyes.

A

Visible Light

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11
Q

Electromagnetic waves with wavelengths from 400-billionths to 10-billionths of a meter

A

Ultraviolet Wave

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12
Q

UV waves can enter _____

A

Cells

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13
Q

Electromagnetic waves from 10-billionth to 10-trillionth of a meter

A

X-ray

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14
Q

X-rays have _____ wavelengths than UV rays

A

Shorter

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15
Q

Electromagnetic waves with wavelengths shorter than 100-trillionth of a meter

A

Gamma Ray

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16
Q

Produced by processes that occur in the nuclei of atoms

A

Gamma Rays

17
Q

The range of frequencies of electromagnetic waves is called…?

A

The electromagnetic spectrum

18
Q

______ and _______ have the longest wavelength.

A

Radiowaves, Microwaves

19
Q

All objects emit __________

A

Infrared Waves

20
Q

The human eye can detect ________ ______

A

Visible Light

21
Q

____, ______, and _____ are both helpful and harmful to humans.

A

Ultraviolet rays, X-rays, and Gamma rays

22
Q

An electromagnetic wave with the specific frequency that a station is assigned

A

Carrier Wave

23
Q

The process of adding an information signal to a carrier wave.

A

Modulation

24
Q

Electric signals whose values change smoothly overtime

A

Analog Signal

25
Q

electric signal for which there are only two possible values (On and Off)

A

Digital Signal

26
Q

Transmits one radio signal and recieves another radio signal

A

Transceiver

27
Q

Telephones contain transceivers and convert _______ into _______ and _______ into _______

A

sounds waves, electic signals, electirc signals, sound waves

28
Q

Microwave towers and satellites are used to ___ ____ ____.

A

Transmit telephone signals

29
Q

Uses a system on satellites to determine one’s exact position.

A

Global Positioning System (GPS)

30
Q

R.A.D.A.R stands for?

A

RAdio Detecting And Ranging

Physical Science (11 decks)

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