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Motion and Time Chapter 13 Class 7 Science

Ruch i Czas Rozdział 13 Klasa 7 Nauka

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Prabh Kirpa Classes

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Ruch i Czas Rozdział 13 Klasa 7 Nauka
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Q1. W szkolnym zawodach lekkoatletycznych, chłopiec biegł z prędkością 2m/s i zajął pierwsze miejsce w biegu na 200m. Ile odległości przebywa on na sekundę?
Q.3. Prosty wahadło potrzebuje 32s na wykonanie 20 drgań. Ile wynosi okres drgań wahadła?
Q. 4. Odległość między dwoma stacjami wynosi 240 km. Pociąg potrzebuje 4 godziny na przebycie tej odległości. Oblicz prędkość pociągu.
Q. 5 Podstawową jednostką prędkości jest: (i) km/min (ii) m/min (iii) km/h (iv) m/s

Course Content

5 sections • 5 lectures • 00:37:54 total length

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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Target Audience

Class 7

About this course

Q1. W szkolnym zawodach lekkoatletycznych, chłopiec biegł z prędkością 2m/s i zajął pierwsze miejsce w biegu na 200m. Ile odległości przebywa on na sekundę?

Q2. Rahul i Rijul wyruszają na wycieczkę. Oboje muszą pojechać do tego samego miejsca i przebyć określoną odległość, ale różnymi samochodami. Jeśli Rahul przebywa określoną odległość w jednej godzinie, a Rijul przebywa tę samą odległość w dwóch godzinach. Kto podróżuje z większą prędkością?

Q.3. Prosty wahadło potrzebuje 32s na wykonanie 20 drgań. Ile wynosi okres drgań wahadła?

Q. 4. Odległość między dwoma stacjami wynosi 240 km. Pociąg potrzebuje 4 godziny na przebycie tej odległości. Oblicz prędkość pociągu.

Q. 5 Podstawową jednostką prędkości jest:

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

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

Q6. Zdefiniuj następujące pojęcia:

A) Odległość

B) Czas:

C) Prędkość:

D) Ruch jednostajny:

E) Średnia prędkość

Q. 7. Przelicz 20 m/s na km/h

Q.8. Przelicz 54km/h na m/s

Q.9. Elektryczny pociąg porusza się z prędkością 30m/s. Jaką odległość przebywa on w 30s?

Q.10. Autobus potrzebuje 30 minut na przebycie odległości 25 km. Oblicz prędkość autobusu w km/h?

Q.11. Pociąg porusza się z prędkością 110km/h. Ile czasu potrzebuje na przebycie trasy o długości 605 km, bez żadnych postojów po drodze?

Q.12. Czas potrzebny na 20 drgań wynosi 40 sekund. Oblicz okres drgań prostego wahadła.

Q.13. Narysuj wykres na podstawie poniższych danych:

Również odpowiedz na następujące pytanie:

Jaki rodzaj ruchu jest przedstawiony na wykresie?

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Prabh Kirpa Classes
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