
Механическая работа и мощность
Authored by Айжан Успанова
Physics
Professional Development
Used 3+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Единицей измерения работы является
Джоуль
Ватт
Паскаль
Ньютон
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Укажите, в каком случае совершается механическая работа:
На столе стоит гиря.
На пружине висит груз.
Трактор тянет прицеп.
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Выбери формулу вычисления мощности:
F = mg
N = A / t
A = F·S
N = t/A
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Выбери единицы измерения мощности:
Вт.
Н
Дж
кг
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Какая физическая величина характеризует быстроту выполнения работы:
Сила трения.
Мощность.
Скорость.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Совершив за 30 с работу 630 Дж, человек развивает мощность
21 кВт
21 Вт
18,9 кВт
0,5 Вт
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Подъёмный кран, подняв груз массой 400 кг на высоту 15 м, совершил работу
27 Дж
267 Дж
6000 Дж
60 кДж
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