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Explain how light travels?
What is the main source of light in the universe?

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1. Name 3 natural versus 3 man-made sources of light. 

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1. Name 3 natural versus 3 man-made sources of light. 

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2. Light can pass through different materials. What is the difference? 

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2. Light can pass through different materials. What is the difference? 

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- Transparent
- Translucent
- Opaque

(b) Can you name some examples of each?

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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.

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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.

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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?

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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?

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5. Which type of material is the shadow the darkest?

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5. Which type of material is the shadow the darkest?

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Transparent/ Translucent/ Opaque?

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Watch the video to revise the concepts of light!

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Watch the video to revise the concepts of light!

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Go to https://youtu.be/fm__GAlrBuQ

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Additional Info: White light is made up of 7 different components:

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Additional Info: White light is made up of 7 different components:

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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.