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§9.4 Satellietbanen - les 3
§9.4 Satellietbanen
Klassikaal: hoogte geostationaire satelliet
Opgaven beheersen maken
Vragenrondje
Evt. bespreken opgave 46
Afsluiting
1 / 25
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Natuurkunde
Middelbare school
havo
Leerjaar 5
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§9.4 Satellietbanen
Klassikaal: hoogte geostationaire satelliet
Opgaven beheersen maken
Vragenrondje
Evt. bespreken opgave 46
Afsluiting
Slide 1 - Slide
Lesdoel
Aan het einde van de les
kan je de hoogte van een geostationaire satelliet berekenen.
Slide 2 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
Slide 3 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
F
m
p
z
=
r
m
⋅
v
2
F
g
=
G
⋅
r
2
m
⋅
M
v
=
T
2
π
⋅
r
Slide 4 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
F
m
p
z
=
F
g
r
m
⋅
v
2
=
G
⋅
r
2
m
⋅
M
v
=
T
2
π
⋅
r
v
2
=
T
2
4
π
2
⋅
r
2
Slide 5 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
F
m
p
z
=
F
g
r
m
⋅
v
2
=
G
⋅
r
2
m
⋅
M
v
=
T
2
π
⋅
r
v
2
=
T
2
4
π
2
⋅
r
2
r
m
⋅
(
4
π
2
⋅
r
2
/
T
2
)
=
G
⋅
r
2
m
⋅
M
Slide 6 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
r
m
⋅
(
4
π
2
⋅
r
2
/
T
2
)
=
G
⋅
r
2
m
⋅
M
m
⋅
4
π
2
⋅
r
/
T
2
=
G
⋅
r
2
m
⋅
M
Slide 7 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
r
m
⋅
(
4
π
2
⋅
r
2
/
T
2
)
=
G
⋅
r
2
m
⋅
M
m
⋅
4
π
2
⋅
r
/
T
2
=
G
⋅
r
2
m
⋅
M
T
2
m
⋅
4
π
2
⋅
r
=
G
⋅
r
2
m
⋅
M
Slide 8 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
r
m
⋅
(
4
π
2
⋅
r
2
/
T
2
)
=
G
⋅
r
2
m
⋅
M
m
⋅
4
π
2
⋅
r
/
T
2
=
G
⋅
r
2
m
⋅
M
T
2
m
⋅
4
π
2
⋅
r
=
G
⋅
r
2
m
⋅
M
T
2
4
π
2
⋅
r
=
G
⋅
r
2
M
Slide 9 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
G = 6,674*10⁻¹¹ N m² kg⁻²
T = 24 h = 86400 s
M = 5,97*10²⁴ kg
T
2
4
π
2
⋅
r
=
G
⋅
r
2
M
T
2
4
π
2
⋅
r
3
=
G
⋅
M
Slide 10 - Slide
De hoogte van een geostationaire satelliet is
36*10³ km. Wat zijn we nog vergeten?
Ons antwoord: r = 4,2235 * 10⁷ m
Slide 11 - Open question
Hoogte ≠ baanstraal
Baanstraal = 9,0993*10⁸ m
r_aarde = 6,371*10⁶ m
h = baanstraal - r_aarde = 4,2235*10⁷ - 6,371*10⁶ = 3,6 * 10⁷ m
h = 36 * 10³ km
Slide 12 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
G = 6,674*10⁻¹¹ N m² kg⁻²
T = 24 h = 86400 s
M = 5,97*10²⁴ kg
T
2
4
π
2
⋅
r
3
=
G
⋅
M
8
6
4
0
0
2
4
π
2
⋅
r
3
=
6
,
6
7
4
⋅
1
0
−
1
1
⋅
5
,
9
7
⋅
1
0
2
4
Slide 13 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
G = 6,674*10⁻¹¹ N m² kg⁻²
T = 24 h = 86400 s
M = 5,97*10²⁴ kg
T
2
4
π
2
⋅
r
3
=
G
⋅
M
4
π
2
⋅
r
3
=
3
,
9
8
4
4
⋅
1
0
1
4
⋅
8
6
4
0
0
2
8
6
4
0
0
4
π
2
⋅
r
3
=
6
,
6
7
4
⋅
1
0
−
1
1
⋅
5
,
9
7
⋅
1
0
2
4
4
π
2
⋅
r
3
=
2
,
9
7
4
3
⋅
1
0
2
4
8
6
4
0
0
4
π
2
⋅
r
3
=
3
,
9
8
4
⋅
1
0
1
4
Slide 14 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
G = 6,674*10⁻¹¹ N m² kg⁻²
T = 24 h = 86400 s
M = 5,97*10²⁴ kg
T
2
4
π
2
⋅
r
3
=
G
⋅
M
8
6
4
0
0
2
4
π
2
⋅
r
3
=
6
,
6
7
4
⋅
1
0
−
1
1
⋅
5
,
9
7
⋅
1
0
2
4
8
6
4
0
0
2
4
π
2
⋅
r
3
=
3
,
9
8
4
⋅
1
0
1
4
Slide 15 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
G = 6,674*10⁻¹¹ N m² kg⁻²
T = 24 h = 86400 s
M = 5,97*10²⁴ kg
r
3
=
4
π
2
2
,
9
7
4
3
⋅
1
0
2
4
=
7
,
5
3
4
1
⋅
1
0
2
2
4
π
2
⋅
r
3
=
2
,
9
7
4
3
⋅
1
0
2
4
Slide 16 - Slide
Geostationaire
satelliet
T = 24 h
h = ?
G = 6,674*10⁻¹¹ N m² kg⁻²
T = 24 h = 86400 s
M = 5,97*10²⁴ kg
r
3
=
4
π
2
2
,
9
7
4
3
⋅
1
0
2
8
=
7
,
5
3
4
1
⋅
1
0
2
2
4
π
2
⋅
r
3
=
2
,
9
7
4
3
⋅
1
0
2
4
r
=
(
7
,
5
3
4
1
⋅
1
0
2
2
)
1
/
3
r
=
4
,
2
2
3
5
⋅
1
0
7
m
Slide 17 - Slide
Aan de slag
§9.4 opgave
45 t/m 49, 52, 53 en 54
Tot 11:55
Slide 18 - Slide
Beheers je de stof van paragraaf 9.4? Heb je nog vragen?!
Slide 19 - Open question
Opgave 46a
Leg uit dat deze uitspraak
onjuist is.
Slide 20 - Slide
Opgave 46b
Leg uit dat de massa van de planeet geen invloed heeft op de baansnelheid
Slide 21 - Slide
Opgave 46c
Leid af dat voor de baansnelheid geldt:
v
2
=
r
G
⋅
M
Slide 22 - Slide
Opgave 46c
Leid af dat voor de baansnelheid geldt:
v
2
=
r
G
⋅
M
F
m
p
z
=
F
g
r
m
⋅
v
2
=
G
⋅
r
2
m
⋅
M
Slide 23 - Slide
Opgave 46c
Leid af dat voor de baansnelheid geldt:
v
2
=
r
G
⋅
M
F
m
p
z
=
F
g
r
m
⋅
v
2
=
G
⋅
r
2
m
⋅
M
r
v
2
=
G
⋅
r
2
M
v
2
=
r
G
⋅
M
Slide 24 - Slide
Afsluiting
Succes met de practicumtoets. Denk rustig na, noteer al je denkstappen.
Huiswerk voor donderdag: alle opgaven van §9.4
Slide 25 - Slide
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