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Physical Science > 31.1 & 31.2 > Flashcards

31.1 & 31.2 Flashcards

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1
Q

constellations

A

Group of stars

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2
Q

radio telescope

A

collects and amplifies radio waves

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3
Q

light year

A

distance light travels in one year

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4
Q

spectroscope

A

annalist different wavelengths of light collected by optical telescopes

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5
Q

nebula

A

stars from a cloud gas

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6
Q

main sequence

A

how hot stars are

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7
Q

giant star

A

a star that became big

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8
Q

white dwarf

A

cooler outside but hotter center

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9
Q

photosphere

A

the layer of the sun that emits light

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10
Q

sunspots

A

dark, cool areas in the sun where magnetic feilds weakened.

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11
Q

blackhole

A

area of space so dense that nothing can escape its gravity pull

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12
Q

supernova

A

a star that colapses on itself and explodes

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13
Q

neutron star

A

a ball of neutrons a supernova leaves behind

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14
Q

how did people name constellations?

A

they named them after characters in stories, animals, and tools.

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15
Q

which constellations represent the great hunter

A

Orion

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16
Q

which constellations represent the hunting dogs?

A

canis major and minor.

17
Q

what does canis major mean?

A

big dog

18
Q

what does canis minor mean?

A

little dog

19
Q

how many types of optical telescopes are there?

A

two types

20
Q

what are the two types of cons

A

concave and convex

21
Q

H-R Diagram

A

The diagram which tells the temperature of stars

22
Q

What happens when a star implodes?

A

Black hole

23
Q

What are the layers of the sun?

A

The core, radiation zone, convection zone.

24
Q

What is the atmosphere of the sun composed of

A

chromosphere and corona

25
Q

Are sun spots permanent?

A

no

26
Q

What are sun spots?

A

Cooler parts of the sun.

Physical Science (5 decks)

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