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Science Junior High

続けて質問失礼します。 問4のIIIで「磁界が交互に周期的に変化する。」ではバツになりますかね?

便業後に質問している場面 本当です。図2は、あるマイクロホンのしくみを模式 的に表したものです。振動板をとりつけたコイルが音に よって振動します。 イルをつらぬく磁界が変化すると,その変化にともなっ てコイルに電圧が生じ,交流電流が流れます。 このよう に、振動が電気信号に変換されるのがマイクロホンです。 図3は,あるスピーカーのしくみを模式的に表したも 振動で,固定された磁石によるコ 1 のです。 図3のスピーカーは, 図2のマイクロホンの 2) 逆のしくみで音を出します。このスピーカーのしくみを 考えてみましょう。 振動板をとりつけた コイル(可動) 振動板をとりつけた コイル(可動) W Z 交流電流 電流の向きA X 音 音 電流の向きB N S 磁石(固定) 磁石(固定) 振動板 (可動) 振動板 (可動) い。 図2 図3 間3 下線部Dについて,コイルをつらぬく磁界が変化することによって生じる電流を何という か,その名称を書きなさい。(3点) 問4 次は,下線部②について, 図3のスピーカーがどのようなしくみになっていることで音が 生じるのかを説明したものです。 組み合わせとして正しいものを,下のア~エの中から一つ選び,その記号を書きなさい。また, 口にあてはまることばを,交互,磁界という語を使って書きなさい。(5点) I」 Iにあてはまる,図3で示されたW~Zの向きの 電流がコイルに流れることでコイルが電磁石となる。Aの向きに電流が流れると振動板 をとりつけたコイルは をとりつけたコイルは 図3のスピーカーのしくみは ことで振動板が振動し,音が生じるようになっているとわかる。 の向きに動く。同様にBの向きに電流が流れると振動板 の向きに動く。先生のマイクロホンの説明から考えると, I II I アI…W IX イ I X I…W ウ I…Y I…Z エ I Z I…Y

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English Junior High

英作文の添削をお願いしたいです🙇‍♀️ I can save the plastic. For example, when I go to the supermarket, I take my bag. I don't have to get the plastic bag... Read More

things, or try to do something else. Even students can do something asa small "step. Wha Japanese cra people who need them. Moe will 4 次の environmental problems(環境問題)についての英文を読んで, あなたの、 suffering from getting larger. problems. Some 本文のあとに[注)があります。 (10点) desert areas are water pollution. Forest areas are getting smaller, and It is important for each of you to think of these problems as your own can you do now ? ~を引き起こす desert……砂漠 【注」cause ~…… step………一歩 environmentally friendly………環境にやさしい 【条件)下線部の質問に対するあなたの考えを,その理由が伝わるように書きなさい。 [記入上の注意) 0 【記入例】にならって, 解答欄の下線」 *符号(,.?!など)は語数に含めません。 * 50語を超える場合は,解答欄の破線 で示された行におさまるように書きなさい。 ② 英文の数は問いません。 【下書き欄】は,必要に応じて使ってかまいません。 【記入例) hoe の上に1語ずつ書きなさい。 00 ods e 3) Hi! I'm Nancy. I'm from America. Where are you from? is April is Ken's birthday, too. 2, 2004. It 50語 1991 2nd

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English Junior High

問2の問題で自分は、 It was painted mountains and the morning sun. と答えたのですが丸になりますか?

Urushi is used for small crafts, and also for buildings made of wOod. It was als 次は、高校1年生の Moe が漆(urushi)について書いた英文です。これを読んで、問1~ of them were painted with "urushi," Urushi is used in many traditional crafts in Japan. Ne Around the sixteenth century, many people from Europe came to Japan. These Europeans really liked crafts made with urushi, so they bought a lot of these crafts. In Europe, rich peopl= In fact, the number of Japanese workers who produce urushi is Many old buildings in World Heritage Sites in Nikko also need a lea 「sap of these trees is used as paim decay slowly. Urushi ha Why did she buy me those chopstics This winter, I went to Ishikawa Prefecture with my family and visited some museums there 「valuable crafts made with urushi. After we left he Urushi has been used for over eight thousand years in Japn 3 enjoyed looking at all the beautiful and mother smiled, and boughta set of *chopsticks for me. made with urushi ? After I came home, I began to use them. They were very beautiful easy to use. rash, but it's safe World. There are five kinds of urushi trees in Japan. The 'bonding agent. If you touch the sap of urushi, then you'll get a or as a sets. touch urushi after it "preserved because they Crafts made with urushi are well preserved very old crafts, so it has played a very important role in Japan. used to build Kinkakuji Temple in Kyoto. Of course, a lot of urushi is needed c. buildings. of urushi. の restormg traditional buildings like these only in Japan. Those crafts were called "japan" 。 'symbol of wealth. collected crafts made with urushi as a symbols of Japan. Of course, even today, urushi is famous as a symbol of Japanese traditional crafts TL the *Nagano Olympic Committee (NAOC) was planning the 1998 Nagano Olympic Winter Gam medals with urushi. NAOC thought that the medals sho it decided to make the winners' be made with original *materials and ^techniques. They also need to be beautiful and h- "permanent value. After thinking about all this, NAOC chose to make them with urushi painted mountains and the morning sun on them with urushi. Many foreign countries restore crafts made with urushi, too. Many of the crafts Europe from Japan now need to be restored. Urushi is especially *vulnerable to sunlig: crafts made with urushi are * damaged when they are in the sunlight. In Europe, some p. have tried to restore their Japanese crafts made with urushi with other materials and techn. because there are no urushi trees there. A But these materials and techniques didn't wor! with urushi. For example in Europe, some of the crafts have now turned brown. 10 Sue a group of Japanese “craftspeople recently visited Germany and restored some ot the ja 2020年·埼玉県(学校選択)(GA)

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