Physique Optique part 1 Flashcards

1
Q

2 types d’emissions lumineuses

A

Incandescence et luminescence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

INCANDESCENCE:

A

Due a chaleur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Luminescence:

A

due au froid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

type de luminescence

A

Fluorescence: Substance est soumis a rayonnement, pas excitation=pas lumiere(aurores,lumieres classe)
Phosphorescence:faible lueur emit par subst. eclaire av.(collants etoiles)
Electroluminescence:Excitation electrique(dels)
chimiluminescence: reactin chimique(baton lumineux)
Sonoluminescence: force mecanique (crevettes)
bioluminescence:reaction chimique chez orgaisme vivant(luciole)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

2 types Source lumineuse

A

Source pnctuelle: lumiere vient d’un point
source etendue: lumiere vient de plusieurs points

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Quantite de lumiere;

A

Faisceaus: forme conique
pinceau: forme cylindrique
rayon: pinceau tres fine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Ombre, penombre, clarte

A

recoit aucun lumiere, une partie, toute lumiere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Facon de creer ombre plus nette

A

rapproche ecran d’obstacle, eloigne la source de l’obstacle, reduit la taille de source, aggrandir obstacle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

3propriete de lumiere

A

Lumiere propage en ligne droite, lumiere propage mieux dans le vide, c=3*10 a la 8 m/s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Eclipse def

A

disparition totale ou partielle d’un astre par un autre astre

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

2 types eclipses:

A

Lunaire: Soleil, terre,lune
Solaire: sOLEIL, LUNE, TERRE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

pHASES DE LUNE

A

1 quart, croissant montant, nouvelle lune, croissant descendant, dernier quart, lune gibeusse, pleine lune, lune gibbeuse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly