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Physique > Ordres de grandeur > Flashcards

Ordres de grandeur Flashcards

1
Q

Intervalle de longueurs d’onde correspondant au visible

A

400 nm à 800 nm

soit de 8e14 Hz à 4e14 Hz

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2
Q

Longueur d’onde du violet

A

420nm

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3
Q

Longueur d’onde du bleu

A

480 nm

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4
Q

Longueur d’onde du jaune

A 
600 nm
(Doublet du sodium autour de 589 nm)
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5
Q

Longueur d’onde du rouge

A

700 nm

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6
Q

Indice de réfraction de l’air

A

n - 1 = 3e-4

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7
Q

Indice de réfraction du vide

A

n = 1

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8
Q

Indice de réfraction du verre

A

n = 1.5

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9
Q

Indice de réfraction de l’eau

A

n = 1.33

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10
Q

Champ de pesanteur à la surface de la Terre

A

g = 9.81 m.s⁻²

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11
Q

Constante universelle de gravitation

A

G = 6.67e-11 m³.kg⁻¹.s⁻²

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12
Q

Rayon de la Terre

A

Rt = 6 400 km

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13
Q

Masse de la Terre

A

Mt = 6e24 kg

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14
Q

Altitude satellite géostationnaire

A

h = 36 000 km

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15
Q

Vitesse de libération de l’attraction terrestre

A

vl = 11.2 km.s⁻¹

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16
Q

Vitesse minimale de satellisation

A

vs = 7.9 km.s⁻¹

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17
Q

Distance Terre-Soleil

A

D = 1.5e11 m = 1 U.A

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18
Q

Masse du Soleil

A

Ms = 2e30 kg

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19
Q

Rayon du Soleil

A

Rs = 700 000 km

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20
Q

Distance Terre-Lune

A

D = 380 000 km = 60*Rt

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21
Q

Masse de la Lune

A

Ml = 7e22 kg

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22
Q

Rayon de la Lune

A

R = 1 700 km

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23
Q

Masse molaire de l’air

A

M = 29 g.mol⁻¹

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24
Q

Masse volumique de l’air (20°C, 1 bar)

A

1.2 kg.m⁻³

1,29 kg.m⁻³ à 0°C

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25
Q

Capacité thermique à volume constant de l’air

A

Cv = 0.72 kJ.K⁻¹.kg⁻¹

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26
Q

Capacité thermique à pression constante de l’air

A

Cp = 1 kJ.K⁻¹.kg⁻¹

27
Q

Masse volumique de la glace

A

920 kg.m⁻³

28
Q

Capacité thermique de l’eau liquide

A

C = 4.18 kJ.K⁻¹.kg⁻¹

29
Q

Fer

A

Fe
A = 55.9 g/mol
Z = 26

30
Q

Cuivre

A

Cu
A = 63.6 g/mol
Z = 29

31
Q

Hydrogène

A

H
A = 1 g/mol
Z = 1

32
Q

Hélium

A

He
A = 4 g/mol
Z = 2

33
Q

Carbone

A

C
A = 12 g/mol
Z = 6

34
Q

Azote

A

N
A = 14 g/mol
Z = 7

35
Q

Oxygène

A

O
A = 16 g/mol
Z = 8

36
Q

Fluor

A

F (halogènes)

Z = 9

37
Q

Plomb

A

Pb
A = 207 g/mol
Z = 82

38
Q

Lithium

A

Li (métaux alcalins)

Z = 3

39
Q

Sodium

A

Na (métaux alcalins)

Z = 11

40
Q

Potassium

A

K (métaux alcalins)

Z = 19

41
Q

Rubidium

A

Rb (métaux alcalins)

Z = 37

42
Q

Césium

A

Cs (métaux alcalins)

Z = 55

43
Q

Francium

A

Fr ( métaux alcalins)

Z = 87

44
Q

Chlore

A

Cl (halogènes)

Z = 17

45
Q

Uranium

A

U (actinides)
A = 238 g/mol
Z = 92

46
Q

Magnésium

A

Mg (alcalino-terreux)

Z = 12

47
Q

Calcium

A

Ca (alcalino-terreux)

Z = 20

48
Q

Néon

A

Ne (gaz nobles)

Z = 10

49
Q

Argon

A

Ar (gaz nobles)

Z = 18

50
Q

Krypton

A

Kr (gaz nobles)

Z = 36

51
Q

Xénon

A

Xe (gaz nobles)

Z = 54

52
Q

Radon

A

Rn (gaz nobles)

Z = 86

53
Q

Nombre d’Avogadro

A

6.02e23 mol⁻¹

54
Q

Énergie de liaison covalente

A

1 à 5 eV (1 eV = 1.6e-19 J)

Partage d’électrons entre deux atomes

55
Q

Énergie de liaison hydrogène

A

0.1 à 0.4 eV

56
Q

Énergie de liaison de Van der Waals

A

5e-2 à 0.2 eV

Interaction électrique de faible intensité entre atomes, molécules

57
Q

Permittivité diélectrique du vide

A

ε₀ = 8.85e-12 F.m⁻¹

58
Q

Masse d’un électron

A

mₑ = 9.1e-31 kg

59
Q

Masse d’un proton

A

m = 1.67e-27 kg

60
Q

Perméabilité magnétique du vide

A

μ₀ = 4π10⁻⁷ kg.m.A⁻².s⁻² = 4π10⁻⁷ T.m.A⁻¹ = 4π*10⁻⁷ H.m⁻¹

61
Q

Longueur d’onde du vert

A

540 nm

62
Q

Temps de réaction de l’œil

A

Capte deux éclairs successifs si Δt > 0.1 s

63
Q

Temps de réaction d’un capteur CCD (utilisé pour les appareils photographiques par exemple)

A

Capte deux éclairs successifs si Δt > 10e-5 s

Physique (16 decks)

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