Light by Heng Xi yan jean https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7 Revising concepts of light and shadows en-us 2022-03-29 01:05:10 UTC 2022-04-09 13:19:52 UTC hello@padlet.com Light is a form of energy. heng_xi_yan_jean https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118278907 Explain how light travels?
What is the main source of light in the universe?]]> 2022-03-29 01:12:47 UTC https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118278907 1. Name 3 natural versus 3 man-made sources of light. heng_xi_yan_jean https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118281352 2022-03-29 01:14:24 UTC https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118281352 2. Light can pass through different materials. What is the difference? heng_xi_yan_jean https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118283122 - Transparent
- Translucent
- Opaque

(b) Can you name some examples of each? ]]> 2022-03-29 01:15:29 UTC https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118283122 3. (a) Draw using light ray diagram how you see an object that is a (i) non-light source; (ii) light source? Draw in your Nature Science book and hand this in by 13 April 2022 (Wed) in class. heng_xi_yan_jean https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118284722 For a light source (eg. torch), the light will travel from the light source into our eyes. However, for a non-light source like a football, explain in words how you can see the football? ]]> 2022-03-29 01:16:31 UTC https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118284722 4. Explain how is shadow formed? heng_xi_yan_jean https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118291236 In addition, 
(i) State how shadow size changes, when object is moved closer to torch? 
(ii) State how shadow size changes, when object is moved closer to screen?]]> 2022-03-29 01:20:19 UTC https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118291236 5. Which type of material is the shadow the darkest? heng_xi_yan_jean https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118304205 Transparent/ Translucent/ Opaque?]]> 2022-03-29 01:27:57 UTC https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118304205 Watch the video to revise the concepts of light! heng_xi_yan_jean https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118307478 Go to https://youtu.be/fm__GAlrBuQ ]]> 2022-03-29 01:29:49 UTC https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118307478 Additional Info: White light is made up of 7 different components: heng_xi_yan_jean https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118323895 Red, Orange, Blue, Green, Blue, Indigo, Violet

When light passes through a prism, it will split into the 7 components. This is similar to light being dispersed or split to its component when a rainbow is formed. ]]> 2022-03-29 01:40:20 UTC https://padlet.com/heng_xi_yan_jean/mc5sr85vyc3nbxz7/wish/2118323895