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Astronomy > Light And Matter > Flashcards

Light And Matter Flashcards

0
Q

A ? Is a thing

A

Particle

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1
Q

The ?? Of each object determines the colors it absorbs or ?

A

Material properties. Reflects.

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2
Q

A wave is a ? Revealed thru its interactions with particles

A

Pattern

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3
Q

Wavelength is the ? From one peak to the next

A

Distance

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4
Q

Wavelength X frequency=

A

Speed

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5
Q

Light is an

A

Electromagnetic wave. They are traveling ( light waves)!on both electronic and magnetic fields

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6
Q

The strength of force that a particle would feel at any point of space

A

Field

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7
Q

Speed of light represented by letter

A

c

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8
Q

300,000 km/s

A

Speed of light

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9
Q

The ? The wavelength the lower the frequency

A

Longer

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10
Q

The shorter the wavelength the ? The frequency

A

Higher

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11
Q

Cycles per second are called

A

Hertz , Hz

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12
Q

Light comes in individual pieces called

A

Photons. They have properties of BOTH particles and waves

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13
Q

The ? The wavelength of a photon , the higher the energy of the photons.

A

Shorter

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14
Q

The ? , ?, and ? Are all related because light travels through space at same ?

A

Wavelength, frequency, and energy. Speed

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15
Q

Atoms are not Indivisible because

A

They can be broken down intoSMALLER parts

16
Q

Freely moving particles constitute a

A

Gas

17
Q

Some water vapor (gas) is always ?

A

Present in ice or water

18
Q

Average kinetic energy of a substance can be measured by

A

Temperature

19
Q

Charged atoms (electrons leave because of collisions) are called

A

ions. hot ionized gas isPLASMa. (4th phase of matter)

20
Q

Only charged particles can interact with light . T Or F

A

True

21
Q

Atoms contain energy in ? ways

A
  1. Mass
    Kinetic. Moving
    Electrical potential energy. The arrangement of electrons around nuclei

Astronomy (16 decks)

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