7 szkoły podstawowej

To jest fizyka 7

Fizyka

Fizyka 7

Fizyka 7 i 8

Fizyka. Zbiór zadań. Romuald Subieta. Klasy 7-8

Spotkania z fizyką 7

Świat fizyki 7

Zbiór zadań do fizyki dla szkoły podstawowej

Zbiór zadań wielopoziomowych z fizyki dla szkoły podstawowej 7-8

Żeby ruszyć przedmiot, trzeba zadziałać siłą większa od maksymalnej siły tarcia statycznego, a wtedy działa już tylko siła tarcia kinetycznego. <table style="border:none;border-collapse: collapse;width: 624px;"> <tbody> <tr style="height: 28px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;" rowspan="2">Siła popychająca</td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;" rowspan="2">Czy skrzynia się poruszy?</td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;" colspan="2">Siła tarcia</td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;" rowspan="2">Siła wypadkowa</td> </tr> <tr style="height: 28px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;">statycznego</td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;">kinetycznego</td> </tr> <tr style="height: 0px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 120 N </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> nie </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 120 N </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> brak </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 0 N </td> </tr> <tr style="height: 0px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 150 N </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> nie </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 150 N </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> brak </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 0 N </td> </tr> <tr style="height: 0px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 210 N </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> tak </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> brak </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 150 N </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 60 N </td> </tr> <tr style="height: 0px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 230 N </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> tak </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> brak </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 150 N </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> 80 N </td> </tr> </tbody> </table> Fw1​=120 N−120 N=0 N Fw2​=150 N−150 N=0 N &nbsp; Fw3​=210 N−150 N=60 N Fw4​=230 N−150 N=80 N &nbsp;

Otaczamy w odpowiedni sposób rysunki:

Żeby ruszyć przedmiot, trzeba zadziałać siłą większa od maksymalnej siły tarcia statycznego, a wtedy działa już tylko siła tarcia kinetycznego. <table style="border:none;border-collapse: collapse;width: 624px;"> <tbody> <tr style="height: 28px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;" rowspan="2">Siła popychająca</td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;" rowspan="2">Czy skrzynia się poruszy?</td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;" colspan="2">Siła tarcia</td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;" rowspan="2">Siła wypadkowa</td> </tr> <tr style="height: 28px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;">statycznego</td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;">kinetycznego</td> </tr> <tr style="height: 0px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/0f072190089e303053badc953e1d69549e3770c9e21c1d90ee8074c2fefe4d9d_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/0f072190089e303053badc953e1d69549e3770c9e21c1d90ee8074c2fefe4d9d_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/c02208f8b2327e562cfed7bbd31ab3422b598c583ec21d935884199ba5cc273a_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/c02208f8b2327e562cfed7bbd31ab3422b598c583ec21d935884199ba5cc273a_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/0f072190089e303053badc953e1d69549e3770c9e21c1d90ee8074c2fefe4d9d_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/0f072190089e303053badc953e1d69549e3770c9e21c1d90ee8074c2fefe4d9d_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/2327e93bbdabb8cb2dfd8c125834ed22f6559f0039978f4988eba1cb7ce6d22a_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/2327e93bbdabb8cb2dfd8c125834ed22f6559f0039978f4988eba1cb7ce6d22a_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/2f4073638824acf2ce315e5e4ab9440c9b4e746f1e89c7996fe57e90f136723f_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/2f4073638824acf2ce315e5e4ab9440c9b4e746f1e89c7996fe57e90f136723f_big.svg" type="image/svg+xml"></object> </td> </tr> <tr style="height: 0px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/ac31458db54ca8ee78f11091489a20ffcfe588df96a8de53ce8724b30959d7cf_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/ac31458db54ca8ee78f11091489a20ffcfe588df96a8de53ce8724b30959d7cf_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/c02208f8b2327e562cfed7bbd31ab3422b598c583ec21d935884199ba5cc273a_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/c02208f8b2327e562cfed7bbd31ab3422b598c583ec21d935884199ba5cc273a_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/ac31458db54ca8ee78f11091489a20ffcfe588df96a8de53ce8724b30959d7cf_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/ac31458db54ca8ee78f11091489a20ffcfe588df96a8de53ce8724b30959d7cf_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/2327e93bbdabb8cb2dfd8c125834ed22f6559f0039978f4988eba1cb7ce6d22a_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/2327e93bbdabb8cb2dfd8c125834ed22f6559f0039978f4988eba1cb7ce6d22a_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/2f4073638824acf2ce315e5e4ab9440c9b4e746f1e89c7996fe57e90f136723f_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/2f4073638824acf2ce315e5e4ab9440c9b4e746f1e89c7996fe57e90f136723f_big.svg" type="image/svg+xml"></object> </td> </tr> <tr style="height: 0px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/ce6e593a9175ef032abf54223a11c05545ce47414776ed1c2b9e9068ed726cdb_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/ce6e593a9175ef032abf54223a11c05545ce47414776ed1c2b9e9068ed726cdb_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/131b875fbb0a222e7e43a6b735e40f1321e331a4882ec5f9c008298e0c1dc115_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/131b875fbb0a222e7e43a6b735e40f1321e331a4882ec5f9c008298e0c1dc115_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/2327e93bbdabb8cb2dfd8c125834ed22f6559f0039978f4988eba1cb7ce6d22a_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/2327e93bbdabb8cb2dfd8c125834ed22f6559f0039978f4988eba1cb7ce6d22a_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/ac31458db54ca8ee78f11091489a20ffcfe588df96a8de53ce8724b30959d7cf_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/ac31458db54ca8ee78f11091489a20ffcfe588df96a8de53ce8724b30959d7cf_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/8cb693242a1d465f5dbe90b19dccbd516324535fb2332b465d5be9cabec13249_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/8cb693242a1d465f5dbe90b19dccbd516324535fb2332b465d5be9cabec13249_big.svg" type="image/svg+xml"></object> </td> </tr> <tr style="height: 0px;"> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/70910634ff3560dfd90734147e0afcecbeb23a8d947ee80634bdd48f21c95210_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/70910634ff3560dfd90734147e0afcecbeb23a8d947ee80634bdd48f21c95210_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/131b875fbb0a222e7e43a6b735e40f1321e331a4882ec5f9c008298e0c1dc115_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/131b875fbb0a222e7e43a6b735e40f1321e331a4882ec5f9c008298e0c1dc115_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/2327e93bbdabb8cb2dfd8c125834ed22f6559f0039978f4988eba1cb7ce6d22a_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/2327e93bbdabb8cb2dfd8c125834ed22f6559f0039978f4988eba1cb7ce6d22a_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/ac31458db54ca8ee78f11091489a20ffcfe588df96a8de53ce8724b30959d7cf_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/ac31458db54ca8ee78f11091489a20ffcfe588df96a8de53ce8724b30959d7cf_big.svg" type="image/svg+xml"></object> </td> <td style="vertical-align: top;padding:7px 7px 7px 7px;border:solid #000000 1px;"> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/4ed93a06e3f4259accf652e3935c5e84347de9525d92d62cd808bdebd2d06964_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/4ed93a06e3f4259accf652e3935c5e84347de9525d92d62cd808bdebd2d06964_big.svg" type="image/svg+xml"></object> </td> </tr> </tbody> </table> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/595a4350e249d682282cd9dff43a063b66b14025303df88a6a3aa8e880e67652_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/595a4350e249d682282cd9dff43a063b66b14025303df88a6a3aa8e880e67652_big.svg" type="image/svg+xml"></object> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/e4eb0fbf2f77ba986b42654b5970f68c95970e0389d6bf6dbf3bf0b61226f210_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/e4eb0fbf2f77ba986b42654b5970f68c95970e0389d6bf6dbf3bf0b61226f210_big.svg" type="image/svg+xml"></object> &nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/63e5b4e42436d29f93f81dfc867edbc5cc16fdbe723dd39742cdfafe4b956f9c_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/63e5b4e42436d29f93f81dfc867edbc5cc16fdbe723dd39742cdfafe4b956f9c_big.svg" type="image/svg+xml"></object> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/5d95aba35057ac01ee3ab9faca7efdd29fc1c3083aa87b9af65775471abf28ad_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/5d95aba35057ac01ee3ab9faca7efdd29fc1c3083aa87b9af65775471abf28ad_big.svg" type="image/svg+xml"></object> &nbsp;

Komentarze