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NGSS1 - Science 9 > Electromagnetic Waves > Flashcards

Electromagnetic Waves Flashcards

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1
Q

Electromagnetic waves are what type of waves?

A

transverse

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2
Q

What are the 2 parts of the wave?

A

electric field and magnetic field

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3
Q

How are electromagnetic waves produced? (2 ways)

A

by constantly changing fields/when a charge vibrates or accelerates.

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4
Q

Electromagnetic waves can travel through.. (2 things)

A

vacuum and a medium

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5
Q

The transfer of energy through electromagnetic waves through space is called

A

Electromagnetic radiation

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6
Q

The speed of light is..

A

3.00 x 10^8

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7
Q

Electromagnetic waves vary in (2 things)

A

wavelength and frequency

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8
Q

Formula for electromagnetic waves is

A

wavelength x frequency

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9
Q

When does electromagnetic radiation act like a wave?

A

when its a light

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10
Q

When does electromagnetic radiation act like a particle?

A

when its a blue light due to the photoelectric effect

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11
Q

Photoelectric affect?

A

when an emission of electrons from a metal is caused by light striking the metals

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12
Q

the intensity of a light increases when..

A

a photon travels closer to the source

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13
Q

Name 5 types of waves

A

radio waves, infrared, visible light, ultraviolet rays, gamma rays

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14
Q

What type of wave is used to kill cancer cells?

A

Gamma rays

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15
Q

what wave is a source of heat?

A

infrared

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16
Q

3 descriptions of material on how light behaves..

A

transparent, translucent & opaque

17
Q

3 types of reflections

A

regular, diffuse, refraction

18
Q

how does the sun change colors at sunrise/sunset?

A

scattering

19
Q

what generates an electric field?

A

electric current

20
Q

what generates an electric charge?

A

moving magnetic fields

21
Q

electric and magnetic waves are

a. parallel
b. perpendicular

A

perpendicular

22
Q

energy produced by electromagnetic waves?

A

radiation

23
Q

the more left of the electromagnetic spectrum you go the _______ the wavelength

a. greater
b. smaller

A

greater

24
Q

the more left of the spectrum you go the ————— the frequency

a. greater
b. smaller

A

smaller

NGSS1 - Science 9 (5 decks)

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