The Sun Flashcards

1
Q

Jarak matahari dari bumi

A

150 juta km

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2
Q

komposisi matahari

A

1/3 - hidrogen
2/3 - helium, oksigen, carbon, neon dan
besi

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3
Q

tenaga solar yang

sampai ke bumi

A

1366 watt setiap satu

meter persegi

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4
Q

polar field

A

1–2 gauss

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5
Q

what are dark patches on the Sun’s

photosphere?

A

sunspots

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6
Q

what is interplanetary magnetic field

A

The electrically conducting solar wind plasma carries the

Sun’s magnetic field into space

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7
Q

cantuman H membentuk

A

He and C

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8
Q

tenaga solar dihasilkan dari

A

cantuman H

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9
Q

cantuman nukelar ada 2 iaitu

A
  1. Rantaian proton-proton (PP)

2. Rantaian carbon-nitrogen-oksigen (CNO)

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10
Q

hasil cantuman

A

4 nukleus H + 2 e

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11
Q

apa jadi kepada electron bebas?

A

bergabung dengan H membentuk nukleus yang ada 2 p, 2 n

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12
Q

perbezaan PP dan CNO

A

PP cantum terus dengan He, CNO ada proses pertengahan sebelum haba dihasilkan

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13
Q

kekerapan PP dan CNO

A

PP - 88%

CNO - 12%

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14
Q

how does the Sun dies?

A

l exit the main sequence and turn into a
red giant. it will grow so large that
it will engulf Mercury, Venus, and probably Earth

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15
Q

what is luminosity?

A

total energy radiated by the Sun

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16
Q

what happen before it turns into a Red Giant?

A

luminosity of Sun will have be nearly doubled

17
Q

berapa lapisan matahari?

A

6 - 4 lapisan dalam dan 2 lapisan gas

18
Q

komposisi teras

A

He - 62%

H - 38%

19
Q

zone mengelilingi teras?

A

radioactive zone

20
Q

selepas radioactive zone

A

convective zone

21
Q

atas convection zone

A

permukaan matahari - photosphere

22
Q

tenaga daripada photosphere dilepaskan ke

A

chromosphere

23
Q

corona is the outermost layer of gas, why?

A
  • low density

- cahaya boleh melepasinya dan sampai ke bumi

24
Q

how sunspot occured

A

reduced surface temperature
caused by concentrations of magnetic field flux that inhibit
convection

25
Q

umbra

A

innermost and darkest part of a shadow,
the light source is completely blocked by the
occluding body

26
Q

penumbra

A

only a portion of the

light source is obscured by the occluding body

27
Q

flare

A

type of pyrotechnic that produces a brilliant

light or intense heat without an explosion

28
Q

prominence -

A

aka filament, anchored to the Sun’s surface in the photosphere, and extend outwards to the corona