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Diffstat (limited to 'html/topic/physics.html')
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1 files changed, 239 insertions, 223 deletions
diff --git a/html/topic/physics.html b/html/topic/physics.html index ec47a06..4db7e7f 100644 --- a/html/topic/physics.html +++ b/html/topic/physics.html @@ -11,198 +11,210 @@ <div class="section" id="measures-and-units"> <p class="sectionHeading">Mål og Enheder</p> <table> - <tr> - <th>Mål</th> - <th>Symbol<sub> af mål</sub></th> - <th>Enhed</th> - <th>Symbol<sub> af enhed</sub></th> - </tr> - <tr class="small"> - <th colspan="4">Mål<sub> med navngivede enheder</sub></th> - </tr> - <tr> - <td>energi</td> - <td class="math">\(E\)</td> - <td>joule</td> - <td class="math">\(J\)</td> - </tr> - <tr> - <td>kraft</td> - <td class="math">\(F\)</td> - <td>newton</td> - <td class="math">\(N\)</td> - </tr> - <tr> - <td>frekvens</td> - <td class="math">\(f\)</td> - <td>hertz</td> - <td class="math">\(Hz\)</td> - </tr> - <tr> - <td>strømstyrke</td> - <td class="math">\(I\)</td> - <td>ampere</td> - <td class="math">\(A\)</td> - </tr> - <tr> - <td>lysstyrke</td> - <td class="math">\(I_v\)</td> - <td>candela</td> - <td class="math">\(cd\)</td> - </tr> - <tr> - <td>masse</td> - <td class="math">\(m\)</td> - <td>kilogram</td> - <td class="math">\(kg\)</td> - </tr> - <tr> - <td>effekt</td> - <td class="math">\(P\)</td> - <td>watt</td> - <td class="math">\(W\)</td> - </tr> - <tr> - <td>tryk</td> - <td class="math">\(p\)</td> - <td>pascal</td> - <td class="math">\(Pa\)</td> - </tr> - <tr> - <td>ladning</td> - <td class="math">\(q\)</td> - <td>coulomb</td> - <td class="math">\(C\)</td> - </tr> - <tr> - <td>distance</td> - <td class="math">\(s\)</td> - <td>meter</td> - <td class="math">\(m\)</td> - </tr> - <tr> - <td>temperatur</td> - <td class="math">\(T\)</td> - <td>kelvin</td> - <td class="math">\(K\)</td> - </tr> - <tr> - <td>tid</td> - <td class="math">\(t\)</td> - <td>sekund</td> - <td class="math">\(s\)</td> - </tr> - <tr class="small"> - <th colspan="4">Mål<sub> med unavngivede enheder</sub></th> - </tr> - <tr> - <td>areal</td> - <td class="math">\(A\)</td> - <td>kvadratmeter</td> - <td class="math">\(m^2\)</td> - </tr> - <tr> - <td>acceleration</td> - <td class="math">\(a\)</td> - <td>meter pr. kvadratsekund</td> - <td class="math">\(\frac {m}{s^2}\)</td> - </tr> - <tr> - <td>varmekapacitet</td> - <td class="math">\(C\)</td> - <td>joule pr. kelvin</td> - <td class="math">\(\frac {J}{K}\)</td> - </tr> - <tr> - <td>specifik varmekapacitet</td> - <td class="math">\(c\)</td> - <td>joule pr. kelvin-kilogram</td> - <td class="math">\(\frac {J}{K \cdot kg}\)</td> - </tr> - <tr> - <td>flux</td> - <td class="math">\(i\)</td> - <td>watt pr. kvadratmeter</td> - <td class="math">\(\frac {W}{m^2}\)</td> - </tr> - <tr> - <td>volumen</td> - <td class="math">\(V\)</td> - <td>kubikmeter</td> - <td class="math">\(m^3\)</td> - </tr> - <tr> - <td>hastighed</td> - <td class="math">\(v\)</td> - <td>meter pr. sekund</td> - <td class="math">\(\frac {m}{s}\)</td> - </tr> - <tr> - <td>densitet</td> - <td class="math">\(\rho\)</td> - <td>kilogram pr. kubikmeter</td> - <td class="math">\(\frac {kg}{m^3}\)</td> - </tr> - <tr class="small"> - <th colspan="4">Mål<sub> uden enheder</sub></th> - </tr> - <tr> - <td>strålingsfaktor</td> - <td class="math">\(\varepsilon\)</td> - </tr> + <thead> + <tr> + <th>Mål</th> + <th>Symbol<sub> af mål</sub></th> + <th>Enhed</th> + <th>Symbol<sub> af enhed</sub></th> + </tr> + </thead> + <tbody> + <tr class="small"> + <th colspan="4">Mål<sub> med navngivede enheder</sub></th> + </tr> + <tr> + <td>energi</td> + <td class="math">\(E\)</td> + <td>joule</td> + <td class="math">\(J\)</td> + </tr> + <tr> + <td>kraft</td> + <td class="math">\(F\)</td> + <td>newton</td> + <td class="math">\(N\)</td> + </tr> + <tr> + <td>frekvens</td> + <td class="math">\(f\)</td> + <td>hertz</td> + <td class="math">\(Hz\)</td> + </tr> + <tr> + <td>strømstyrke</td> + <td class="math">\(I\)</td> + <td>ampere</td> + <td class="math">\(A\)</td> + </tr> + <tr> + <td>lysstyrke</td> + <td class="math">\(I_v\)</td> + <td>candela</td> + <td class="math">\(cd\)</td> + </tr> + <tr> + <td>masse</td> + <td class="math">\(m\)</td> + <td>kilogram</td> + <td class="math">\(kg\)</td> + </tr> + <tr> + <td>effekt</td> + <td class="math">\(P\)</td> + <td>watt</td> + <td class="math">\(W\)</td> + </tr> + <tr> + <td>tryk</td> + <td class="math">\(p\)</td> + <td>pascal</td> + <td class="math">\(Pa\)</td> + </tr> + <tr> + <td>ladning</td> + <td class="math">\(q\)</td> + <td>coulomb</td> + <td class="math">\(C\)</td> + </tr> + <tr> + <td>distance</td> + <td class="math">\(s\)</td> + <td>meter</td> + <td class="math">\(m\)</td> + </tr> + <tr> + <td>temperatur</td> + <td class="math">\(T\)</td> + <td>kelvin</td> + <td class="math">\(K\)</td> + </tr> + <tr> + <td>tid</td> + <td class="math">\(t\)</td> + <td>sekund</td> + <td class="math">\(s\)</td> + </tr> + <tr class="small"> + <th colspan="4">Mål<sub> med unavngivede enheder</sub></th> + </tr> + <tr> + <td>areal</td> + <td class="math">\(A\)</td> + <td>kvadratmeter</td> + <td class="math">\(m^2\)</td> + </tr> + <tr> + <td>acceleration</td> + <td class="math">\(a\)</td> + <td>meter pr. kvadratsekund</td> + <td class="math">\(\frac {m}{s^2}\)</td> + </tr> + <tr> + <td>varmekapacitet</td> + <td class="math">\(C\)</td> + <td>joule pr. kelvin</td> + <td class="math">\(\frac {J}{K}\)</td> + </tr> + <tr> + <td>specifik varmekapacitet</td> + <td class="math">\(c\)</td> + <td>joule pr. kelvin-kilogram</td> + <td class="math">\(\frac {J}{K \cdot kg}\)</td> + </tr> + <tr> + <td>flux</td> + <td class="math">\(i\)</td> + <td>watt pr. kvadratmeter</td> + <td class="math">\(\frac {W}{m^2}\)</td> + </tr> + <tr> + <td>volumen</td> + <td class="math">\(V\)</td> + <td>kubikmeter</td> + <td class="math">\(m^3\)</td> + </tr> + <tr> + <td>hastighed</td> + <td class="math">\(v\)</td> + <td>meter pr. sekund</td> + <td class="math">\(\frac ms\)</td> + </tr> + <tr> + <td>densitet</td> + <td class="math">\(\rho\)</td> + <td>kilogram pr. kubikmeter</td> + <td class="math">\(\frac {kg}{m^3}\)</td> + </tr> + <tr class="small"> + <th colspan="4">Mål<sub> uden enheder</sub></th> + </tr> + <tr> + <td>strålingsfaktor</td> + <td class="math">\(\varepsilon\)</td> + </tr> + </tbody> </table> <p>Mål med variante enheder:</p> <table> - <tr> - <th>Mål</th> - <th>Enheder</th> - <th>Symboler<sub> af enheder</sub></th> - </tr> - <tr> - <td>temperatur</td> - <td>grader celsius</td> - <td class="math">\({}^{\circ}C\)</td> - </tr> - <tr> - <td>hastighed</td> - <td>kilometer pr. time</td> - <td class="math">\(\frac {km}{h}\)</td> - </tr> + <thead> + <tr> + <th>Mål</th> + <th>Enheder</th> + <th>Symboler<sub> af enheder</sub></th> + </tr> + </thead> + <tbody> + <tr> + <td>temperatur</td> + <td>grader celsius</td> + <td class="math">\({}^{\circ}C\)</td> + </tr> + <tr> + <td>hastighed</td> + <td>kilometer pr. time</td> + <td class="math">\(\frac {km}{h}\)</td> + </tr> + </tbody> </table> <p>Variante mål:</p> <table> - <tr> - <th>Mål</th> - <th>Symbol</th> - <th>Afledt af</th> - </tr> - <tr> - <td>tyngdeacceleration</td> - <td class="math">\(g\)</td> - <td>acceleration</td> - </tr> - <tr> - <td>kinetisk energi</td> - <td class="math">\(K\)</td> - <td rowspan="4">energi</td> - </tr> - <tr> - <td>potentiel energi</td> - <td class="math">\(U\)</td> - </tr> - <tr> - <td>varmeenergi</td> - <td class="math">\(Q\)</td> - </tr> - <tr> - <td>arbejde</td> - <td class="math">\(W\)</td> - </tr> - <tr> - <td>bølgelængde</td> - <td class="math">\(\lambda\)</td> - <td>distance</td> - </tr> + <thead> + <tr> + <th>Mål</th> + <th>Symbol</th> + <th>Afledt af</th> + </tr> + </thead> + <tbody> + <tr> + <td>tyngdeacceleration</td> + <td class="math">\(g\)</td> + <td>acceleration</td> + </tr> + <tr> + <td>kinetisk energi</td> + <td class="math">\(K\)</td> + <td rowspan="4">energi</td> + </tr> + <tr> + <td>potentiel energi</td> + <td class="math">\(U\)</td> + </tr> + <tr> + <td>varmeenergi</td> + <td class="math">\(Q\)</td> + </tr> + <tr> + <td>arbejde</td> + <td class="math">\(W\)</td> + </tr> + <tr> + <td>bølgelængde</td> + <td class="math">\(\lambda\)</td> + <td>distance</td> + </tr> + </tbody> </table> <p>Afledte enheder:</p> <p class="math">\(1\ C=1\ A \cdot 1\ s\)</p> @@ -231,15 +243,15 @@ <p class="math">\(T=\sqrt[4] {\frac i{{\sigma}{\varepsilon}}}\)</p> <p>... ved overfladen af det strålende objekt.</p> <br /> - <p class="math">\(\lambda=\frac {v}{f}\)</p> + <p class="math">\(\lambda=\frac vf\)</p> </div> <div class="section" id="mechanics"> <p class="sectionHeading">Mekanik</p> <p class="math">\(a=\frac Fm\)</p> <p class="math">\(a=\frac vt\)</p> - <p class="math">\(g=\frac {Gm}{r^{2}}\)</p> + <p class="math">\(g=\frac {Gm}{r^2}\)</p> <p>... hvori <i>r</i> er distancen til planetens kerne.</p> - <p class="math">\(g_♁=\frac {981}{10^2}\ \frac {m}{s^2}\)</p> + <p class="math">\(g_♁=\frac {981}{10^2}\ \frac m{s^2}\)</p> <p>... er standard på Jorden.</p> <br /> <p class="math">\(E=Pt\)</p> @@ -249,8 +261,8 @@ <p class="math">\(W=Fs\)</p> <br /> <p class="math">\(F=\frac Es\)</p> - <p class="math">\(F=\frac {Gm_{0}m_{1}}{r^{2}}\)</p> - <p>... hvori <span class="math">\(m_0\)</span> og <span class="math">\(m_1\)</span> er masserne af objekterne og <span class="math">\(r\)</span> er distancen mellem centrene af de to objekter.</p> + <p class="math">\(F=\frac {Gm_0m_1}{r^2}\)</p> + <p>... hvori <i>m<sub>0</sub></i> og <i>m<sub>1</sub></i> er masserne af objekterne og <i>r</i> er distancen mellem centrene af de to objekter.</p> <br /> <p class="math">\(P=\frac Et\)</p> <br /> @@ -270,41 +282,45 @@ <p class="sectionHeading">Konstanter</p> <p class="subHeading">Jf. <a href="/html/topic/mathematics.html#constants">matematikkens konstanter</a>.</p> <table> - <tr> - <th>Navn</th> - <th>Symbol</th> - </tr> - <tr> - <td>lysets hastighed i et vakuum</td> - <td class="math">\(c\)</td> - </tr> - <tr> - <td>elementærladningen</td> - <td class="math">\(e\)</td> - </tr> - <tr> - <td>gravitationskonstanten</td> - <td class="math">\(G\)</td> - </tr> - <tr> - <td>Plancks konstant</td> - <td class="math">\(h\)</td> - </tr> - <tr> - <td>Boltzmanns konstant</td> - <td class="math">\(k_B\)</td> - </tr> - <tr> - <td>Stefan-Boltzmann konstanten</td> - <td class="math">\(\sigma\)</td> - </tr> + <thead> + <tr> + <th>Navn</th> + <th>Symbol</th> + </tr> + </thead> + <tbody> + <tr> + <td>lysets hastighed i et vakuum</td> + <td class="math">\(c\)</td> + </tr> + <tr> + <td>elementærladningen</td> + <td class="math">\(e\)</td> + </tr> + <tr> + <td>gravitationskonstanten</td> + <td class="math">\(G\)</td> + </tr> + <tr> + <td>Plancks konstant</td> + <td class="math">\(h\)</td> + </tr> + <tr> + <td>Boltzmanns konstant</td> + <td class="math">\(k_B\)</td> + </tr> + <tr> + <td>Stefan-Boltzmann konstanten</td> + <td class="math">\(\sigma\)</td> + </tr> + </tbody> </table> - <p class="math">\(c=299\ 792\ 458\ \frac {m}{s}\)</p> + <p class="math">\(c=299\ 792\ 458\ \frac ms\)</p> <p class="math">\(e=\frac {1\ 602\ 176\ 634}{10^{28}}\ C\)</p> <p class="math">\(G \approx \frac {66\ 743}{10^{15}}\ \frac {m^3}{kg \cdot s^2}\)</p> - <p class="math">\(h=\frac {662\ 607\ 015}{10^{42}}\ \frac {J}{Hz}\)</p> - <p class="math">\(k_B=\frac {1\ 380\ 649}{10^{29}}\ \frac {J}{K}\)</p> - <p class="math">\(\sigma=\frac {2\pi^5k_B^4}{15h^3c^2} \approx \frac {5\ 670\ 374\ 419}{10^{17}}\ \frac {W}{m^2K^4}\)</p> + <p class="math">\(h=\frac {662\ 607\ 015}{10^{42}}\ \frac J{Hz}\)</p> + <p class="math">\(k_B=\frac {1\ 380\ 649}{10^{29}}\ \frac J{K}\)</p> + <p class="math">\(\sigma=\frac {2\pi^5k_B^4}{15h^3c^2} \approx \frac {5\ 670\ 374\ 419}{10^{17}}\ \frac W{m^2K^4}\)</p> </div> </div> <!--#include virtual="/shtml/copyrightNotice.shtml"--> |