
3物理25
Quiz
•
Physics
•
8th Grade
•
Practice Problem
•
Medium
誠徳 三木
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5 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
一定時間(秒)の仕事の量、仕事の効率のことを何というか。
仕事率
仕事量
仕事効率
反作用
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
仕事率の単位は何か。
W(ワット)
m(メートル)
J(ジュール)
N(ニュートン)
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
仕事率の公式を書きなさい。
仕事率(W)=仕事(J)×仕事にかかった時間(S)
仕事率(W)=仕事(J)/仕事にかかった時間(S)
仕事率(W)=仕事(J)×仕事にかかった時間(h)
仕事率(W)=仕事(N)/仕事にかかった時間(h)
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
10Nの物体を、斜面を使って、5秒で,2mの高さまで持ち上げた。仕事率はいくらか。
40W
4W
12W
300W
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
動滑車を使って、2kgのものを,12秒で,3mの高さまで持ち上げた。仕事率はいくらか。
5W
720W
50W
72W
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