cap 1 Flashcards

1
Q

universul

A

tot ceea ce ne inconjoara, vazut si nevazut

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2
Q

varsta universului

A

13-16 mld ani

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3
Q

marea explozie

A

in primele secunde dupa explozie,materia a inceput sa se raceasca, sa se concentreze si sa dea nastere corpurilor cosmice

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4
Q

materia organizata din univers

A

strele, planete, comete

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5
Q

constelatiile

A

grupari mici de stele

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6
Q

galaxiile

A

grupari de mld de stele

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7
Q

stelele

A

corpuri cosmice cu lumina si caldura proprie, alcatuite din gaze, in interiorul carora au loc rectii chimice de transformare a H in He

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8
Q

stele albastre

A

tinere, 30.000 C

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9
Q

stele galbene

A

mature,6000 C

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10
Q

stele rosii

A

varstnice 3500 c

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11
Q

gigantele rosii

A
  1. pot exploda 1nebuloase gazoase=dau nastere unor noi stele/gauri negre=atrag corpurile din apropiere

2.se stinge =Pitica alba

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12
Q

planetele telurice

A

cu roca Mercur Venus Marte Pamant

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13
Q

planetele gazoase

A

Jupiter Venus Uranus Neptun

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14
Q

varsta soarelui

A

5 mld ani

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15
Q

alcatuirea soarelui

A
  1. interior-plasma 15 mil c
    2.atmosfera solara
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16
Q

atmosfera solara

A

1.fotosfera=500km,6000c,pete solare
2.cromosfera=10.00km, eruptii solare
3.coroana solara=grosimi de mil de km,gaze ionizate, temp foarte mari

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17
Q

diametrul lunii

A

3476km

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18
Q

masa lunii

A

de 81,3 de ori mai mica decat a Pamantului

19
Q

volumul lunii

A

de 50 de ori mai mic decat al Pamantului

20
Q

departarea lunii

A

356400 km perigeu
406700 km apogeu

21
Q

atmosfera lunii

A

inezistenta

22
Q

aselenizarea lunii

A

21 iulie 1969

23
Q

temperatura lunii

A

150 , -130c

24
Q

meteoritii

A

bucati rupte din alte corpuri, bucati rezultate din impact

25
Q

cometele

A

corpuri cosmice alcatuite din cap (gheata si gaze) si coada (gaze_)

26
Q

forma Pamantului

A

elipsoid de rotatie, geoid, terroid

27
Q

raza ecuatoruala

A

6378km

28
Q

raza polara

A

6357 km

29
Q

lingimea ecuat

A

40.075 km

30
Q

lungimea primului meridian

A

40.008 km

31
Q

diametrul ecuatorial

A

12.575 km

32
Q

suprafata pamantului

A

510 mil

33
Q

alc chimica

A

el. grele Ni Fe NUCLEU MANTA
el. usoare Si Ca la ext.

se datoreaza f centrifuga centripeda

au intervenit apropierea de soare si act vulcanica

34
Q

magnetismul

A

ne prot de rad comice
sre leg cu intensitatea solara

35
Q

magnetosfera

A

dirijeaza vantul solar spre cei 2 npoli, aurore polare

36
Q

densitatea pamantului

A

5,515 nucelu 14-18/ manta6-4/ scoarta 3-2

37
Q

graviatia in atmosfera

A

vanturi, mantinerea aerului respirabil in troposfera

38
Q

gravitatia in hidrosfera

A

lungimea raurilor, deplasarea curentilor

39
Q

gravitatia in litosfera

A

alunecari de teren, prabusiri

40
Q

biosfera

A

geotropisme

41
Q

inclinarea fata de verticala

A

23 27

42
Q

inclinare fata de orbita

A

66 33

43
Q
A