Properties of light Year 4

Video shown shadow puppetry performance. The property of light that applied in the show is that light travels in a _____

Based on your understanding on the property of light, is the puppet transparent, translucent or opaque?

• Transparent

• Translucent

• Opaque

Tags

NGSS.MS-PS4-2

What are the factors that affect the size of the puppets' shadows?

Please type your response in full sentences:

" The distance of the puppets from the.... "

What is the differences between reflection of light and refraction of light?

• Reflection of light means light reflected when it hits a smooth, shiny or flat surface. Whereas, refraction of light takes place when light moves through two different media.

• Reflection of light means light takes place when light moves through two different media. Whereas, refraction of light is light reflected when it hits a smooth, shiny or flat surface.

Tags

NGSS.MS-PS4-2

State two uses of the reflection of light in our daily life?

Type your responses in a sentence

Tags

NGSS.MS-PS4-2

Sketch a ray diagram of an incident ray and a reflected ray on the surface of a mirror to demonstrate the reflection of light. Sketch the ray and label it correctly.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The diagram shows a type of periscope. State how it is used and state the light phenomenon that is involved.

Type your response in a sentence.

Tags

NGSS.MS-PS4-2

What is the observation that can be made based on the diagram given?

The ​ (a)   looks ​ (b)   ​ (c)   the container of ​ (d)  

• pencil
• bent
• inside
• water
• outside
• straight

Observation : The pencil looks bent inside the container or water

State an inference based on the observation above

​ (a)   is ​ (b)   when it ​ (c)   from one medium to another ​ (d)  

• Light
• refracted
• moves
• medium
• reflected
• stands

Tags

NGSS.MS-PS4-2

Label X and Y

a

b

Image of pencil

real object of pencil

Tags

NGSS.MS-PS4-2