Gravitationsfält. Uppdaterad: [1] Gravitation ett märkligt fenomen [2] Gravitationsfält [3] Gravitationsfält

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1 Gravitationsfält Uppdaterad: [1] Gravitation ett märkligt fenomen [2] Gravitationsfält [3] Gravitationsfält Har jag använt någon bild som jag inte får använda? Låt mig veta så tar jag bort den. [12]

2 Läget idag X [x]

3 Läget idag X Materia Partikelegenskaper p = mv W k = mv2 2 Ja! (mekanik) R = p Kvantfältteorier Vågegenskaper i ψ t = 2 2 ψ 2m x +Uψ 2 Ja! (kvantmekanik) Strålning p = γmv E k = (γ 1)mc 2 QED p = h Partikelfysikens standardmodell QCD W = hf E, B λ Ja! (fotonmodellen) Ja! (elektromagnetism, optik) [x] (2005)

4 Läget idag X Partikelegenskaper Vågegenskaper Materia p = mv W k = mv2 2 Ja! (mekanik) R = p i ψ t = 2 2 ψ 2m x +Uψ 2 Ja! (kvantmekanik) p = γmv E k = (γ 1)mc 2 Strålning p = h W = hf λ Ja! (fotonmodellen) E, B Ja! (elektromagnetism, optik) [x] (2005)

5 1 Gravitation ett märkligt fenomen Hur kan ett föremål här ute känna av jorden?

6 1 Gravitation ett märkligt fenomen Hur kan ett föremål här ute känna av jorden? [1]

7 1 Gravitation ett märkligt fenomen Hur kan ett föremål här ute känna av jorden? F =G m1m2 r2 [2] [1] [3]

8 1 Gravitation ett märkligt fenomen Hur kan ett föremål här ute känna av jorden? F =G m1m2 r2 [2] [3] But hitherto I have not been able to discover the cause of those properties of gravity from phænomena, and I frame no hypotheses. And to us it is enough, that gravity does really exist, and act according to the laws which we have explained, and abundantly serves to account for all [1] the motions of the celestial bodies, and of our sea. [4]

9 2 Gravitationsfält Ett sätt att förstå beskriva gravitationsväxelverkan:

10 Gravitationsfält 2 Ett sätt att förstå beskriva gravitationsväxelverkan:

11 Gravitationsfält 2 Ett sätt att förstå beskriva gravitationsväxelverkan: 1) Ett föremål med massa ger upphov till och omges av ett gravitationsfält. Gravitationsfält kan åskådliggöras genom att rita fältlinjer.

12 Gravitationsfält 2 Ett sätt att förstå beskriva gravitationsväxelverkan: 1) Ett föremål med massa ger upphov till och omges av ett gravitationsfält. Gravitationsfält kan åskådliggöras genom att rita fältlinjer.

13 Gravitationsfält 2 Ett sätt att förstå beskriva gravitationsväxelverkan: 1) Ett föremål med massa ger upphov till och omges av ett gravitationsfält. 2) Ett annat föremål med massa i fältet Gravitationsfält kan åskådliggöras genom att rita fältlinjer.

14 Gravitationsfält 2 Ett sätt att förstå beskriva gravitationsväxelverkan: 1) Ett föremål med massa ger upphov till och omges av ett gravitationsfält. 2) Ett annat föremål med massa i fältet påverkas av en gravitationskraft. Gravitationsfält kan åskådliggöras genom att rita fältlinjer. Gravitationsfältlinjer anger riktningen för gravitationskraften på e en partikel.

15 Gravitationsfält 2 Ett sätt att förstå beskriva gravitationsväxelverkan: 1) Ett föremål med massa ger upphov till och omges av ett gravitationsfält. 2) Ett annat föremål med massa i fältet påverkas av en gravitationskraft. Gravitationsfält kan åskådliggöras genom att rita fältlinjer. Gravitationsfältlinjer anger riktningen för gravitationskraften på e en partikel.

16 Gravitationsfält 2 m F g kraft på litet föremål med massan m storhet som beskriver fältet Gravitationsfältstyrkan i en punkt: g = F g m F g = mg SI-enhet: 1 N/kg ) (Egentligen: g! = F "!" g m

17 Gravitationsfält 2 Ett sätt att förstå beskriva gravitationsväxelverkan: 1) Ett föremål med massa ger upphov till och omges av ett gravitationsfält. 2) Ett annat föremål med massa i fältet påverkas av en gravitationskraft. F g m kraft på litet föremål med massan m storhet som beskriver fältet Gravitationsfältstyrkan i en punkt: g = F g m F g = mg SI-enhet: 1 N/kg ) (Egentligen: g! = F "!" g m Gravitationsfält kan åskådliggöras genom att rita fältlinjer. Gravitationsfältlinjer anger riktningen för gravitationskraften på e en partikel för gravitationsfältstyrkan (g).

18 Gravitationsfält J/C 3 Två olika sätt att åskådliggöra gravitationsfält: Genom att rita gravitationsfältstyrka-vektorer Genom att rita (gravitations)fält-linjer

19 Rymdstationen MIR X [5]

20 Rymdstationen MIR X [6] [5]

21 [7]

22 [8] [7]

23 [8] [7]

24 Rymdstationen MIR X [9] [10] [11] [12] [8]

25 Rymdstationen MIR [13]

26 Källor [1] [2] Porträtt målat 1689, då Newton var 47 år gammal. Principia gavs ut två år tidigare, [3] [4] [5] Wikipedia-bildtext: Russian Space Station Mir, backdropped against Earth, taken from the Space Shuttle Atlantis following undocking from the station at the end of STS-71 on the 4th of July, On the 29th of June, 1995, STS-71 became the first Shuttle mission ever to dock with the station. [6] [7] Wikipedia-bildtext: Approach view of the Mir Space Station viewed from Space Shuttle Endeavour during the STS-89 rendezvous. A Progress cargo ship is attached on the left, a Soyuz manned spacecraft attached on the right. [8] Core module Kvant-1: 19 m, Priroda docking module: 31 m, Kvant-2 Spektr: 27,5 m (från Wikipedia) [9] Kosmonauten Yury V. Usachev. Utanför fönstret skymtar nosen på rymdfärjan Atlantis (STS-76). [10] [11] Julen 1997 på MIR. [12] MIR och rymdfärjan Atlantis den 4 juli 1995 (STS-71). Bilden är tagen av två kosmonauter som tog en flygtur i Soyuz-farkosten. Rymdfärjan verkar ha dockat på olika ställen på MIR vid olika tillfällen. [13] STS-79- och MIR-22-besättningarna den 20 september 1996.

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