APSB - 6 - Science :: Light, shadows and images
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[Contributor - Aasma Ahmad]
Objective: To teach students the need of light to see objects and how shadows and images are formed
Subtopics to be covered:
- How we see objects
- How are shadows formed
- Straight line motion of light (a pinhole camera and magnifying glass)
- Difference between shadows and images
Learning Outcome:
- Students know how light is needed to see objects
- They know how shadows are formed and which object form shadows
- The know how light travels
- They know how images are formed
[Author - Kripa S]
http://scert.telangana.gov.in/sites/default/files/publication/ebooks/6TM_GENSC.pdf#page=161 (Telangana Board) (Telugu Medium)
http://apscert.gov.in/ebookapp/GeneratePdf (AP Board) (Telugu Medium)
http://scert.telangana.gov.in/sites/default/files/publication/ebooks/6EM_GENSC.pdf#page=166 (Telangana Board) (English Medium)
http://apscert.gov.in/ebookapp/GeneratePdf (AP Board) (English Medium)
[Author - Kripa S]
https://www.youtube.com/watch?v=OiR2zkDHrLU (English - Formation of Shadow - Light, Shadows and Reflections)
[Author - Anu Nived]
https://s-media-cache-ak0.pinimg.com/564x/22/8f/11/228f11805b86010612df19ea25bf083c.jpg (shadows)
https://turntable.kagiso.io/images/Screen_Shot_2017-04-24_at_9.52.55_AM.original.png (mirrors and reflection)
https://userscontent2.emaze.com/images/d186da23-5fba-444a-a625-a7a8581f5594/5fe50df2e56b78643696f38affa4b6d5.jpg (transparent object)
http://s4.thingpic.com/images/AR/KLZpMCfSRmcrunv4Mu4cN52Y.png (transparent, opaque and translucent )
[Author - Kripa S]
1. It is possible to cast multiple shadows of an object at the same time. Try to understand how this can be done and try to create this on your own. Observe the intensity of the shadow in this case. Observe the players in a day-night cricket match.
2. Observe and understand how and why the length of the shadow of a light pole changes during the day.
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