NCERT - 7 - Science :: Motion and Time

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[Contributor- Anu Nived]

Objective: To teach the students about speed, how to measure speed

Subtopics to be covered:

- Measurement of time, periodic and oscillatory motion

- Units of speed and time

- Distance time graph

Learning Outcome:

- Students can define speed, identify if objects moves fast or slow

- They know about odometer

- They would be able to do simple word problems based on speed , time and distance

[Contributor- Kripa S]

http://epathshala.nic.in/wp-content/doc/book/flipbook/Class%20VII/0759-Vigyan/Chapter%2013/index.html (NCERT Hindi Medium)

http://epathshala.nic.in/wp-content/doc/book/flipbook/Class%20VII/0758-Science/Chapter%2013/index.html (NCERT English Medium)

https://drive.google.com/open?id=0BzNF2YyqQxJ-WVhyTE9rbWNXcGc (JEPC Board) (Hindi Medium)

[Contributor - Kripa S]

(Source - Bodhaguru)

https://www.youtube.com/watch?v=LJc2XUOrBVk ( Hindi - Universe - Rotation of Earth )

[Contributor - Anu Nived]

http://www.mathsmutt.co.uk/files/dst_files/1.gif (Speed, Distance, Time)

http://physicsspeed.weebly.com/uploads/2/9/7/5/29758099/2901110_orig.png (relation between Distance, Speed, Time)

http://www.mathsmutt.co.uk/files/dst_files/2.gif (Speed Formula)

https://image.slidesharecdn.com/speedandvelocity-110216035528-phpapp02/95/speed-and-velocity-2-728.jpg?cb=1297828561 (units of Distance, Speed, Time)

http://www.bsquaredfutures.com/pluginfile.php/150/course/section/96/images/conversion.gif (conversion of mm - km)

[Contributor - Arshea Bimal, Kripa S]

1. Any 5 students run from one point to another (fixed distance) one by one. Record the time taken. The Speed of each student is the distance run divided by time taken.

2. Any 5 students hop from one point to another (fixed distance) one by one. Record the time taken. The Speed of each student is the distance hopped divided by time taken.

3. Any 5 students walk from one point to another (fixed distance) one by one. Record the time taken. The Speed of each student is the distance walked divided by time taken.

4. Take a stone, tie a thread to it and whirl it with your hand. Observe the motion of the stone. We see that the stone moves along a circular path.

[Contributor - Rahul Rohit]

https://drive.google.com/open?id=0B4m07xnDF8JpQmVUVW81eXJzRDg

[Contributor - Fathima Nazar]

Term	Transliterated Term	Translated Term
Bar Graph	बार ग्राफ़	रेखा ग्राफ
Graph	ग्राफ़	रेखांकन
Non Uniform Motion	नॉन युनीफॉर्म मोशन	असमान गति
Oscillation	ऑसिलेशन	दोलन
Simple pendulum	सिंपल पेंडुलम	सरल लोलक
Speed	स्पीड	गति, चाल
Time period	टाइम पीरियड	आवर्तकाल
Uniform motion	यूनीफॉर्म मोशन	एकसमान गति
Unit of time	यूनिट ऑफ़ टाइम	समय का मात्रक

[Contributor - Rahul Rohit]

https://drive.google.com/open?id=0B4m07xnDF8JpTEo3RExIUGhQd0k

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