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diff --git a/html/topic/physics.html b/html/topic/physics.html new file mode 100644 index 0000000..ec47a06 --- /dev/null +++ b/html/topic/physics.html @@ -0,0 +1,313 @@ +<!DOCTYPE html> +<html lang="da"> + <!--#include virtual="/shtml/head.shtml"--> + <!--#include virtual="/shtml/mathJax.shtml"--> + <body> + <!--#include virtual="/shtml/logotype.shtml"--> + <div class="content"> + <!--#include virtual="/shtml/navigationBar.shtml"--> + <div class="page"> + <p class="pageHeading">Fysik</p> + <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> + </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> + </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> + </table> + <p>Afledte enheder:</p> + <p class="math">\(1\ C=1\ A \cdot 1\ s\)</p> + <p class="math">\(1\ Hz=1\ s^{-1}\)</p> + <p class="math">\(1\ J=1\ \frac {kg \cdot m^2}{s^2}\)</p> + <p class="math">\(1\ N=1\ \frac {kg \cdot m}{s^2}\)</p> + <p class="math">\(1\ Pa=1\ \frac {kg}{ms^2}\)</p> + <p class="math">\(1\ W=1\ \frac Js\)</p> + <br /> + <p>Variante enheder:</p> + <p class="math">\(1\ {}^{\circ}C=\frac {5463}{20}\ K\)</p> + <p class="math">\(1\ \frac {km}h=\frac 5{18}\ \frac ms\)</p> + </div> + <div class="section" id="electrodynamics"> + <p class="sectionHeading">Elektrodynamik</p> + <p class="math">\(I=\frac qt\)</p> + <br /> + <p class="math">\(i=\frac PA\)</p> + <p class="math">\(i=T^4{\sigma}{\varepsilon}\)</p> + <p>... afgives ved stråling.</p> + <br /> + <p class="math">\(P=iA\)</p> + <br /> + <p class="math">\(q=It\)</p> + <br /> + <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> + </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>... hvori <i>r</i> er distancen til planetens kerne.</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> + <p class="math">\(K=\frac {mv^2}2\)</p> + <p class="math">\(U=Fs\)</p> + <p>... hvori <i>F</i> er tyngdekraften og <i>g</i> er den lokale tyngeacceleration.</p> + <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> + <br /> + <p class="math">\(P=\frac Et\)</p> + <br /> + <p class="math">\(p=\frac FA\)</p> + <br /> + <p class="math">\(\rho=\frac mV\)</p> + </div> + <div class="section" id="thermodynamics"> + <p class="sectionHeading">Termodynamik</p> + <p class="math">\(C=Cm\)</p> + <br /> + <p class="math">\(c=\frac Cm\)</p> + <br /> + <p class="math">\(Q=CT\)</p> + </div> + <div class="section" id="constants"> + <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> + </table> + <p class="math">\(c=299\ 792\ 458\ \frac {m}{s}\)</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> + </div> + </div> + <!--#include virtual="/shtml/copyrightNotice.shtml"--> + </div> + </body> +</html> |