Grade

Subject

Type of questions

Science Junior High

問2です!! なぜ等速直線運動をしているとわかるのですか?

6 物体の運動を調べる実験について,次の各問に答えよ。 ただし、物体間の摩擦や空気抵抗は考え ないものとする。 <実験1 > を行ったところ, <結果 1 >のようになった。 <実験1 > (1) 1秒間に50回打点する記録タイマーと記録テープ, 台車を用意し, 記録タイマーに通した記録 テープの一方の端を, 台車に取りつけた。 (2) 斜面と水平面を組み合わせ, 台車を運動させるための台をつくり, 図1のように, 台車の前輪が 斜面と水平面の境目から50cmの位置になるようにして台車を斜面上に置き, 手で支えた。 図 1 記録タイマー 水平面 EVENE RECHET DENGANIBUS 斜面 50cm A B 5打点分の長さ[cm] 1.9 5.3 台車 (3) 記録タイマーのスイッチを入れるのと同時にそっと手を放し, 台車の運動の様子を記録した。 (4) 記録テープを台車から取り外し, 打点が重なっている部分を切り落として5打点ごとに長さを測 り,このときの5打点分の記録テープを, 記録した順にA~Eとした。 <結果 1 > C D 8.7 12.1 [問] 図2は,実験1> の (2)で斜面上に置いた台車に重 力が働いている様子を, 台車を直方体におきかえて模式的 に表したものである。 このとき, 重力や手が台車を支える 力以外で台車に働く力を, 解答用紙の図中に, 作用点を で示し,実線の矢印でかけ。 なんか多い E 15.5 記録テープ 図2 ・台車・ ・斜面

Solved Answers: 2
English Junior High

このような英文を読むのに8分ぐらいかかってしまいます。筆記は30分しかないので、2、3分で読めるようになりたいです。 早く読めるコツを教えてください。

4 Read the passage and choose the answer which best completes each sentence (1) 1)~(4). We all know that any person has a dream while they are sleeping. We also know that it is difficult to remember dreams after we wake up. Most dreams are soon forgotten and they disappear like small bubbles in water. In addition, they often cannot be remembered at all after they are forgotten. Even if you can remember a dream soon after you wake up, perhaps you cannot remember it any more after getting out from your bed to make some coffee. Maybe you have had such an experience. Then, have you ever noticed that you were having a dream while you were sleeping? / Some people have had such an experience. It is called a lucid dream, and some scientists in the world do research on it. Actually, there are even research groups which focus on it. Why do they do research on lucid dreams? For one thing, there may be advantages for us. We will be able to avoid nightmares and make our dreams happier or more exciting if we can notice we are having dreams and we can control them like a pilot. Today, scientists do not know enough about lucid dreams and how to control them, so there are still many things to be done in the research. But it may be possible for everyone to have lucid dreams if science in the area improves more. Actually, that is one of goals that some scientists are trying to reach. According to a survey, over 75% of the respondents answered that they experienced a lucid dream at least once in their lives. Also, many reports about lucid dream experiences were given in history. We can find early reports on them in books from ancient cultures. For example, an ancient Greek doctor already tried to use lucid dreams as a kind of therapy over two thousand years ago. And controlling our dreams in our own ways was one of the important topics among early Buddhists in Asia.

Solved Answers: 1
English Junior High

問ニの②と問3、問4教えてください

3 次は,アメリカからの留学生のケイト (Kate) と, 高校生の勇太 (Yuta) との対話と, その日の夜に勇太が書いた日記の一部である。これらを読んで、後の各問に答えよ。 (One Monday morning. ) Kate Good morning, Yuta. Yuta : Good morning, Kate. You look sleepy. What's up? Kate: I went to bed late last night because I was talking a lot with my host family. Yuta Oh, I see. events. Kate: Some differences between America and Japan, for example, food, sports, and I think (find / we/ it's / to / interesting) differences in culture. Yuta: I think so, too. How about schools? Did you find any differences? Kate: Yes. For example, on the first day in Japan, I was surprised because my host brother walked to school by himself. In America, students - especially elementary school students go to school by school bus, or their parents drive them to school. Yuta: Really? In Japan, most students walk or ride a bike to school. I often get up late and ask my mother, "Drive me to school, please." But she says, "No! Run to school!" ja Kate: That's funny. I have another interesting story. Teachers here often say, "Take your textbooks home. Don't leave them at school." But students in America must leave them at school. Yuta Really? Why? Kate In America, students borrow textbooks from the states. We give them back at the end of the year. We (in/ not/them/ are/ write / must) or make them dirty. Yuta That's interesting! I want to know more about differences in culture. Kate Me, too. I want to talk about them with you. Do you have some time this weekend? Yuta I'm going to visit my grandfather's house on Sunday. But I'm ( f) on : Saturday. Please come to my house on Saturday. Kate OK. See you then. This morning I talked with Kate. She ( (1) ) me about some differences between American and Japanese schools. I was surprised that students in America [ 1. When I heard about that, I also became interested in differences in culture. So I'm going to talk about them with her on (@ ) at my house. 2

Solved Answers: 1