
Paprastieji mechanizmai
Quiz
•
Science
•
8th Grade
•
Medium
Greta Juskeviciute
Used 8+ times
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14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Kuo naudingi paprastieji mechanizmai?
Galime laimėti darbo
Jais neįmanoma nieko laimėti
Laimime kelio
Galime darbą atlikti lengviau – laimime jėgos
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Kuriuo paprastuoju mechanizmu jėgos laimime 2 kartus?
Svertu
Nekilnojamuoju skridiniu
Kilnojamuoju skridiniu
Nuožulniąja plokštuma
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kuris teiginys neteisingas?
Nekilnuojamuoju skridiniu jėgos nelaimime, o tik pakeičiame jos veikimo kryptį
Nuožulnioji plokštuma – tai tokia plokštuma, kuri su horizontu sudaro smailų kampą
Viso ir naudingo darbo sandauga vadinama naudingumo koeficientu
Mechanizmas, kuris turi įtvirtinimo ašį ir sukasi apie ją ratu, vadinamas svertu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kokiu paprastuoju mechanizmu remiasi šios supynės?
Skridinys
Svertas
Nuožulnioji plokštuma
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kroviniui pakelti nuožulniąja plokštuma reikia tiek kartų mažiau jėgos, kiek kartų ta plokštuma kūno nueitas kelias yra:
ilgesnis už kūno pakilimo aukštį
trumpesnis už kūno pakilimo aukštį
lygus kūno pakilimo aukščiui
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Naudingumo koeficientas visada yra:
< 1
> 1
= 1
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Koks tai paprastasis mechanizmas?
Svertas
Kilnojamasis skridinys
Nekilnojamasis skridinys
Nuožulnioji plokštuma
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