april 15 quiz Flashcards

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1
Q

what is the mass of our sun

A

1

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2
Q

what is the chromosphere

A

gives the sun a reddish glow

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3
Q

what is the photosphere

A

layer of the sun that emits light

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4
Q

what is the convection zone

A

gases rise and cool from the sun

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5
Q

radioactive zone

A

heat moves out from the core

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6
Q

core

A

the hot centre

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7
Q

sunspots

A

areas of strong magnetism on the suns surface

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8
Q

all the layers on the sun from outermost to innermost

A

corona, chromosphere, photosphere, convection zone, radioactive zone, core

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9
Q

what powers the sun

A

thermonuclear fusion

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10
Q

which elements are involved with thermonuclear fusion in our sun?

A

hydrogen combine to make helium

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11
Q

what are the 4 energies

A

Radiant, Light, Thermal, Chemical

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12
Q

define radiant energy

A

electromagnetic waves from the sun

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13
Q

define light energy

A

visible to people

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14
Q

define thermal energy

A

heat

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15
Q

define chemical energy

A

its stored in chemical bonds

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16
Q

which gases contribute to the greenhouse effect the most

A

carbon dioxide, methane, nitrous oxide, water vapour

17
Q

what are the 2 types of ecosystem?

A

natural(natural) and artificial (made by people)

18
Q

define biodiversity

A

the number of species in an ecosystem

19
Q

define ecology

A

study of how species interact

20
Q

define individual

A

any one living thing

21
Q

define population

A

all the individuals of one species in a certain area

22
Q

define community

A

all the different populations in one area

23
Q

define ecosystem

A

all the biotic and abiotic organisms in a community

24
Q

define biome

A

a collection of ecosystems with similar climate, other features, etc

25
Q

define biosphere

A

All ecosystems on earth

26
Q

list all the organised groups from most to least specific

A

individual, population, community, ecosystem, biome, biosphere

27
Q

define extinct

A

a species that no longer exists

28
Q

define exterpated

A

a species that no longer exists in a certain area

29
Q

define endangered

A

facing imminent extinction

30
Q

define succession

A

replacing a community after a disturbance

31
Q

define photosynthesis

A

the process of turning light into chemical energy

32
Q

What does ATP stand for

A

Adenosine Triphosphate

33
Q

define producer

A

autotrophs that use light energy to make their food

34
Q

define consumer

A

heterotrophs that eat other organisms

35
Q

what is the chart with all the stars called

A

hertz sprung-russel chart