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運動と時間 7年生第13章科学

運動と時間 7年生第13章科学

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運動と時間 7年生第13章科学
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Jumla ya Maudhui

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Q1. 学校の運動会で、ある少年が2m/sの速度で走り、200mのレースで1位になりました。彼は1秒間にどのくらいの距離を走ったでしょうか?
Q3. 単純な振り子が20回の振動を完了するのに32秒かかります。振り子の周期は何秒ですか?
Q4. 2つの駅間の距離は240kmです。電車がこの距離をカバーするのに4時間かかります。電車の速度を計算してください。
Q5. 速度の基本単位は:(i) km/min (ii) m/min (iii) km/h (iv) m/s

Maudhui ya Kozi

5 sehemu • 5 mihadhara • 00:37:54 urefu wa jumla

Introduction

04:21
Q1. In a school athletic meet, a boy ran at a speed of 2m/s and stood first in a 200m race. How much distance is covered by him per second? Q2. Rahul and Rijul are going on the excursion. They both have to go to the same place and cover a certain distance but in different cars. If Rahul covers a certain distance in one hour and Rijul covers the same distance in two hours. Who travels with a higher speed? Q.3. A simple pendulum takes 32s to complete 20 oscillations. What is the time period of the pendulum? Q. 4. The distance between the two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train. Q. 5 The basic unit of speed is: (i) km/min (ii) m/min (iii) km/h (iv) m/s Q6. Define the following terms: A) Distance B) Time: C) Speed: D) Uniform Motion: E) Average Speed Q. 7. Change 20 m/s to km/h Q.8. Change 54km/h to m/s Q.9. An electric train is moving at a speed of 30m/s. How much distance will it travel in the 30s? Q.10. A bus takes 30 minutes to travel a distance of 25 km. Calculate the speed of the bus in km/h? Q.11. A train is traveling at a speed of 110km/h. How long will it take to complete a journey of 605 km, without any stoppage in between? Q.12. The time taken for 20 oscillations is 40 seconds. Calculate the time period of a simple pendulum. Q.13. Plot the graph from the following data: Also answer the following question: What is the type of motion shown in the graph? Q.14 Vani takes 2h to reach Jalandhar from Amritsar by car. If speed of her car is 40km/h., calculate the distance between Jalandhar and Amritsar. Q.15. You are going to a hill station by car. You are very excited to reach there early and want to cover more distance quickly. You are asking your dad about the distance covered so far again and again. Your father told you about a device in a car which can measure the distance covered by car. Can you name that device? Q.16. Show the shape of the distance-time graph for the motion in the following cases: (a) A car moving with a constant speed (b) A car parked on a side road Q.17. Which of the following relations is correct? (a) Speed = Distance x Time (b) Speed = Distance/Time (c) Speed= Time/Distance (d) Speed=1/Distance x Time
  1. Which of the following distance-time graphs shows a truck moving with speed which is not constant.

Q1. In a school athletic meet, a boy ran at a speed 2m/s and stood first in 200m

08:46

Q1. In a school athletic meet, a boy ran at a speed of 2m/s and stood first in a 200m race. How much distance is covered by him per second?

Q2. Rahul and Rijul are going on the excursion. They both have to go to the same place and cover a certain distance but in different cars. If Rahul covers a certain distance in one hour and Rijul covers the same distance in two hours. Who travels with a higher speed?

Q.3. A simple pendulum takes 32s to complete 20 oscillations. What is the time period of the pendulum?

Q. 4. The distance between the two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train.

Q. 5 The basic unit of speed is:(i) km/min (ii) m/min(iii) km/h (iv) m/s

Q6. Define the following terms:-A) Distance B) Time : C) Speed:

08:42

Q6. Define the following terms:-

A) Distance

B) Time :

C) Speed:

D) Uniform Motion:

E) Average Speed

Q. 7. Change 20 m/s to km/h

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Kuhusu kozi hii

Q1. 学校の運動会で、ある少年が2m/sの速度で走り、200mのレースで1位になりました。彼は1秒間にどのくらいの距離を走ったでしょうか?

Q2. ラフルとリジュルは遠足に行きます。彼らは同じ場所に行き、同じ距離をカバーする必要がありますが、異なる車で行きます。ラフルが1時間で一定の距離をカバーし、リジュルが2時間で同じ距離をカバーします。誰がより速く移動しますか?

Q3. 単純な振り子が20回の振動を完了するのに32秒かかります。振り子の周期は何秒ですか?

Q4. 2つの駅間の距離は240kmです。電車がこの距離をカバーするのに4時間かかります。電車の速度を計算してください。

Q5. 速度の基本単位はどれですか?

(i) km/min (ii) m/min

(iii) km/h (iv) m/s

Q6. 以下の用語を定義してください:

A) 距離

B) 時間:

C) 速度:

D) 一様な運動:

E) 平均速度

Q7. 20 m/sをkm/hに変換してください

Q8. 54km/hをm/sに変換してください

Q9. 電車が30m/sの速度で動いています。30秒でどのくらいの距離を移動しますか?

Q10. バスが25kmの距離を移動するのに30分かかりますが。バスの速度をkm/hで計算してください。

Q11. 電車が110km/hの速度で移動しています。途中で停車することなく、605kmの旅を完了するのにどのくらいの時間がかかりますか?

Q12. 20回の振動に40秒かかります。単純な振り子の周期を計算してください。

Q13. 以下のデータからグラフを作成してください:

また、次の質問に答えてください:

グラフに示されている運動の種類は何ですか?

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