
Механическая работа и мощность
Quiz
•
Other
•
7th Grade
•
Practice Problem
•
Medium
Olga Kostikova
Used 56+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как обозначается механическая мощность?
A
N
F
s
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
По какой формуле можно вычислить механическую мощность?
N=A/t
A=F*s
N=mg
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Единица измерения мощности в СИ?
В (вольт)
Вт (ватт)
Н (ньютон)
Дж (джоуль)
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Единицы измерения механической работы в СИ?
Дж (джоуль)
В (вольт)
Вт (ватт)
Н (ньютон)
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
По какой формуле вычисляется механическая работа?
A=F*s
N=A/t
N=mg
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как обозначается механическая работа?
A
N
F
s
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Тело массой 2 кг с помощью крана поднимают на высоту 5 м за 4 с. Какая работа совершена при этом силой крана?
100 Дж
100 Вт
25 Дж
25 Вт
-100 Дж
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