
Jednoduché stroje
Authored by Vaclav Koplik
Physics
5th - 9th Grade
Used 2+ times

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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jak značíme práci?
F
s
W
Q
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co to je?
Volná kladka
Pevná kladka
Kladkostroj
Zvedač
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je vzorec pro práci?
s : F
F : s
F . s
W . s
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co to je?
Volná kladka
Pevná kladka
Kladkostroj
Zvedač
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dva lidé jdou do kopce a přijdou do stejné chaty. Jeden jde po strmé cestě, druhý jde mírně do kopce. Jakou práci vykonali?
Ten, co šel po strmé, více
Ten, co šel po strmé, méně
Ten, co šel po mírném stoupání, méně
oba dva stejně
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Co platí u kladkostroje?
Taháš to 2x větší silou
Taháš 2x méně provazu
Taháš to 2x menší silou
Taháš 2x více provazu
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Jaké jsou výhody pevné kladky (viz obrázek)?
Nemusíš nosit břemeno po schodech
Můžeš použít vlastní váhu
Stačí ti tlačit 2x menší silou
Lepší je tahat provaz dolů, než nahoru
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