Kärnidén
Energins bevarande
Start with the central idea, then test it against a concrete element or example. A scientific model is useful when we know what it explains — and where its limits are.
Energins bevarande
Kärnidén
Energins bevarande. Detta grundbegrepp kopplar en fysikalisk modell till observerbara storheter och experiment.
Varför det är viktigt
Detta grundbegrepp kopplar en fysikalisk modell till observerbara storheter och experiment.
En bild att minnas
Mendelejev förklarar
Take one idea at a time. If a new word appears, connect it to a concrete object, number or experiment before moving on.
Prova själv
Say the idea aloud in your own words, then test it with a simple example.
Vanlig fallgrop
Memorising a sentence is not the same as understanding the mechanism behind it.
Kärnidén
Energins bevarande
Väglett exempel
Energins bevarande
Start with the central idea, then test it against a concrete element or example. A scientific model is useful when we know what it explains — and where its limits are.
Öva själv
Energins bevarande
Izaberite novi slučaj povezan sa Energins bevarande. Napišite poznate podatke, traženu veličinu i jedinice. Zatim navedite pravilo, model ili trend koji koristite. Ako postoji račun, proverite jedinice u svakom koraku; ako je zadatak pojmovni, jasno navedite šta se menja a šta ostaje isto.
Kontrollera svaret
Dobar odgovor sadrži početnu situaciju, promenljivu koja se menja, smer promene ili brojčani rezultat i jednu nezavisnu proveru: jedinicu, red veličine, granični slučaj ili poređenje sa poznatim primerom.