https://padlet.com/MsRL/LightModel Make your own 3D model en-us 2021-05-20 07:08:41 UTC 2025-12-25 07:05:07 UTC hello@padlet.com MsRL https://padlet.com/MsRL/LightModel/wish/1542791737 Using the following materials (or other items), create a model to show as accurately as you can, how light rays behave! You should create for both reflection and refraction! =) You can be creative!
1) Light source
2) Mirror or glass block
3) Strings
4) Ruler
5) A small toy/object
6) Tape
After creating the 3D model, draw ray diagrams to represent the behaviour of light rays. Feel free to post any questions you have and we'll get back to you =)]]> 2021-05-20 07:11:02 UTC https://padlet.com/MsRL/LightModel/wish/1542791737 MsRL https://padlet.com/MsRL/LightModel/wish/1542813771 1) Please post your Grp number and name in the title as shown above.

2) Then post a picture of your 3D model with a short description to explain your model. Include 2D drawing of your ray diagrams. Let your creative juices flow!]]> 2021-05-20 07:19:08 UTC https://padlet.com/MsRL/LightModel/wish/1542813771 https://padlet.com/MsRL/LightModel/wish/1556156479 Reflection. (2D description )
- the torch is the light source. When the mirror is in front if the toy car, the light ray reflects. Hence u see an image of the of the toy car. There is 2 types of rays. Incidence ray and the reflection ray the . The lines can tell you the direction of the light ray, as you can see, the light ray traveled in a straight line. The law of reflection is that the angle of Incidnece = angle of reflection. ]]> 2021-05-25 03:22:04 UTC https://padlet.com/MsRL/LightModel/wish/1556156479 https://padlet.com/MsRL/LightModel/wish/1556165082 Refraction, The toy car is an example of a light ray. There is a synthetic grass patch which is optically denser than the air. As the right wheel of the toy car touches the boundary of the normal, the speed of light ray slows down, and bent. Once the car goes away from the boundary of the normal, ( grass patch ) the speed of the light ray travels faster. ( F.A.S.T)]]> 2021-05-25 03:25:52 UTC https://padlet.com/MsRL/LightModel/wish/1556165082 Shannon_Aung https://padlet.com/MsRL/LightModel/wish/1556378934 The incident ray hits the mirror and is reflected by the mirror in the direction of the image. ]]> 2021-05-25 05:10:09 UTC https://padlet.com/MsRL/LightModel/wish/1556378934 azraa_hasena https://padlet.com/MsRL/LightModel/wish/1556390488 The Torchlight is the light source.When the mirror is in front of the object,the light ray reflects thus being able to see an image on the mirror.the arrows show the direction of the light ray and the lines refer to lights properly of which light travels in a straight line.]]> 2021-05-25 05:15:13 UTC https://padlet.com/MsRL/LightModel/wish/1556390488 https://padlet.com/MsRL/LightModel/wish/1556393311 Light rays shine into the eye in the direction from the image of the correction tape. The image formed by the the mirror has the same distance with the object from the mirror, and it’s the same sizes.The line from the mirror to image is a reference line and not the light ray. The image is virtual and dotted lines represents virtual. The direction of the reflected rays is towards the eyes. The lines from the mirror to the image is drawn with dotted lines as it is virtual and not real. The normal line is a reference line that is perpendicular to the mirror. While the angle of incidence is the same as the angle of reflection, it is called the law of reflection.]]> 2021-05-25 05:16:24 UTC https://padlet.com/MsRL/LightModel/wish/1556393311 https://padlet.com/MsRL/LightModel/wish/1556395660 Diagram of reflection.The light reflected off the surface of the mirror onto the wall]]> 2021-05-25 05:17:28 UTC https://padlet.com/MsRL/LightModel/wish/1556395660 https://padlet.com/MsRL/LightModel/wish/1556399759 2021-05-25 05:19:21 UTC https://padlet.com/MsRL/LightModel/wish/1556399759 azraa_hasena https://padlet.com/MsRL/LightModel/wish/1556407566 The glass block is optically denser than air thus when the object enters the glass block the speed of the light ray slows down causing the object to move towards the normal but when the object leaves the glass block the light rays travel faster causing the object to move away from the normal.]]> 2021-05-25 05:22:44 UTC https://padlet.com/MsRL/LightModel/wish/1556407566 https://padlet.com/MsRL/LightModel/wish/1556413953 Refraction occurs when a light rays gets bend while travelling from one object to the another object due to change in the speed of light or change in the direction.]]> 2021-05-25 05:25:34 UTC https://padlet.com/MsRL/LightModel/wish/1556413953 https://padlet.com/MsRL/LightModel/wish/1556421621 If the surface is smooth and shiny, like glass, the light will reflect at the same angle as it hit the surface.]]> 2021-05-25 05:28:43 UTC https://padlet.com/MsRL/LightModel/wish/1556421621 Chloe_Chua_03 https://padlet.com/MsRL/LightModel/wish/1556428353 the light will first shine to the object and then get reflected to the eye. that’s a reflection ]]> 2021-05-25 05:31:54 UTC https://padlet.com/MsRL/LightModel/wish/1556428353 https://padlet.com/MsRL/LightModel/wish/1556430178 This my model of light( sorry for blurry mirror ).]]> 2021-05-25 05:32:44 UTC https://padlet.com/MsRL/LightModel/wish/1556430178 Chloe_Chua_03 https://padlet.com/MsRL/LightModel/wish/1556434996 refraction occurs when light rays get bend sue to the change of speed in light or object]]> 2021-05-25 05:34:53 UTC https://padlet.com/MsRL/LightModel/wish/1556434996 ng_chun_siong_nicholas1 https://padlet.com/MsRL/LightModel/wish/1556437577 Reflection: The light rays from the torch get reflected off the mirror and into our eyes. The distance between the image and the mirror is the same as the distance between the object and the mirror.]]> 2021-05-25 05:36:02 UTC https://padlet.com/MsRL/LightModel/wish/1556437577 azraa_hasena https://padlet.com/MsRL/LightModel/wish/1556442214 2021-05-25 05:37:57 UTC https://padlet.com/MsRL/LightModel/wish/1556442214 https://padlet.com/MsRL/LightModel/wish/1556442619 Diagram for reflection.


]]> 2021-05-25 05:38:08 UTC https://padlet.com/MsRL/LightModel/wish/1556442619 gisselleng https://padlet.com/MsRL/LightModel/wish/1556444152 The torch light is the light source. The light source wil be reflected by the mirror and bounce into The Eye.]]> 2021-05-25 05:38:50 UTC https://padlet.com/MsRL/LightModel/wish/1556444152 https://padlet.com/MsRL/LightModel/wish/1556446115 Refraction.A toy car is a good representation of a light ray.The glass block is optically denser than air.The toy car’s right wheel will touch the optically denser surface first, which slows the car down and therefore the toy car travels away from the normal. When the toy car touches the less optically dense area , it will speed up, which is how light rays behave]]> 2021-05-25 05:39:37 UTC https://padlet.com/MsRL/LightModel/wish/1556446115 https://padlet.com/MsRL/LightModel/wish/1556447876 2021-05-25 05:40:28 UTC https://padlet.com/MsRL/LightModel/wish/1556447876 https://padlet.com/MsRL/LightModel/wish/1556453894 2021-05-25 05:43:03 UTC https://padlet.com/MsRL/LightModel/wish/1556453894 https://padlet.com/MsRL/LightModel/wish/1556457980 estherr]]> 2021-05-25 05:44:49 UTC https://padlet.com/MsRL/LightModel/wish/1556457980 ng_chun_siong_nicholas1 https://padlet.com/MsRL/LightModel/wish/1556459937 2D diagram of reflection]]> 2021-05-25 05:45:44 UTC https://padlet.com/MsRL/LightModel/wish/1556459937 https://padlet.com/MsRL/LightModel/wish/1556465507 Refraction occured because when the pencil was inside the cup of water, the image of the pencil is bent. It is because water is optically less dense than air, so when the pencil was inside the cup of water, the speed of light slowed down]]> 2021-05-25 05:48:01 UTC https://padlet.com/MsRL/LightModel/wish/1556465507 https://padlet.com/MsRL/LightModel/wish/1556467597 My diagram for reflection, when the light ray hits the mirror, the image will be formed by the mirror and will have the same distance apart from the mirror as the object.]]> 2021-05-25 05:48:59 UTC https://padlet.com/MsRL/LightModel/wish/1556467597 https://padlet.com/MsRL/LightModel/wish/1556472681 This is 3D diagram of reflection.


]]> 2021-05-25 05:51:06 UTC https://padlet.com/MsRL/LightModel/wish/1556472681 https://padlet.com/MsRL/LightModel/wish/1556482292 refraction occurs when the light rays enter something optically less or more dense and bends towards or away from the normal. As shown in the diagram, the light ray travels into the glass block which is optically less dense than air so it slows down and bends towards the normal.  ]]> 2021-05-25 05:55:16 UTC https://padlet.com/MsRL/LightModel/wish/1556482292 https://padlet.com/MsRL/LightModel/wish/1556489105 2021-05-25 05:58:14 UTC https://padlet.com/MsRL/LightModel/wish/1556489105 https://padlet.com/MsRL/LightModel/wish/1556490023 2021-05-25 05:58:39 UTC https://padlet.com/MsRL/LightModel/wish/1556490023 ng_chun_siong_nicholas1 https://padlet.com/MsRL/LightModel/wish/1556491607 Refraction occurs when light rays enter a different mediums like light rays entering water which is optically denser than air.]]> 2021-05-25 05:59:21 UTC https://padlet.com/MsRL/LightModel/wish/1556491607 ong_qiao_enn1 https://padlet.com/MsRL/LightModel/wish/1556497806 Reflection:
The torchlight act as a light source and the light ray hits the mirror. The real image of the ball and the reflected image of it is the same size. The dotted lines means virtual and represent the distance between the both image. The reflected rays is going towards the eye thus being able to see the image of the ball.]]> 2021-05-25 06:02:07 UTC https://padlet.com/MsRL/LightModel/wish/1556497806 https://padlet.com/MsRL/LightModel/wish/1556509005 2021-05-25 06:06:56 UTC https://padlet.com/MsRL/LightModel/wish/1556509005 https://padlet.com/MsRL/LightModel/wish/1556515586 2021-05-25 06:09:36 UTC https://padlet.com/MsRL/LightModel/wish/1556515586 https://padlet.com/MsRL/LightModel/wish/1556518171 The object will be reflected off the mirror and the person can see the object]]> 2021-05-25 06:10:37 UTC https://padlet.com/MsRL/LightModel/wish/1556518171 https://padlet.com/MsRL/LightModel/wish/1556521127 2021-05-25 06:11:47 UTC https://padlet.com/MsRL/LightModel/wish/1556521127 https://padlet.com/MsRL/LightModel/wish/1556537941 2021-05-25 06:18:43 UTC https://padlet.com/MsRL/LightModel/wish/1556537941 https://padlet.com/MsRL/LightModel/wish/1556566024 An example of refraction in my bottle]]> 2021-05-25 06:29:40 UTC https://padlet.com/MsRL/LightModel/wish/1556566024 lee_ying_xuan_7 https://padlet.com/MsRL/LightModel/wish/1556575403 Updated one]]> 2021-05-25 06:33:17 UTC https://padlet.com/MsRL/LightModel/wish/1556575403 https://padlet.com/MsRL/LightModel/wish/1556612204 My 3D model. Diagram is in a separate response ]]> 2021-05-25 06:46:48 UTC https://padlet.com/MsRL/LightModel/wish/1556612204 xiins https://padlet.com/MsRL/LightModel/wish/1556661341 reflection : the torch = light source. hence I can see the spoon in the mirror.]]> 2021-05-25 07:05:11 UTC https://padlet.com/MsRL/LightModel/wish/1556661341 xiins https://padlet.com/MsRL/LightModel/wish/1556679724 reflection drawing ]]> 2021-05-25 07:12:05 UTC https://padlet.com/MsRL/LightModel/wish/1556679724 manasanan_lim1 https://padlet.com/MsRL/LightModel/wish/1556824569 The light is reflected by the mirror and into our eye.this way,we are able to see the object.the incident rays is going towards the mirrors and the reflected rays enter our eyes

]]> 2021-05-25 08:14:04 UTC https://padlet.com/MsRL/LightModel/wish/1556824569 manasanan_lim1 https://padlet.com/MsRL/LightModel/wish/1556836849 When light enters the water,it is bent.the image we see in the water is virtual.it is not real.as light bends in water,the image is above the actual object and we seethe image.this is why the pencil appears bent.this is caused when light is refracted.]]> 2021-05-25 08:20:53 UTC https://padlet.com/MsRL/LightModel/wish/1556836849 loke_wang_yip_kayden1 https://padlet.com/MsRL/LightModel/wish/1557058470 Refraction is when light enters a different medium, which in this case is water. Water is optically denser than air, so the light turns toward the normal and appears bent.]]> 2021-05-25 10:16:39 UTC https://padlet.com/MsRL/LightModel/wish/1557058470 https://padlet.com/MsRL/LightModel/wish/1557120056 When the light shines onto the object, the light ray will shine into the mirror and the reflected ray will reflect into our eyes.

]]> 2021-05-25 10:54:59 UTC https://padlet.com/MsRL/LightModel/wish/1557120056 https://padlet.com/MsRL/LightModel/wish/1557183938 My drawing of reflection]]> 2021-05-25 11:31:17 UTC https://padlet.com/MsRL/LightModel/wish/1557183938 https://padlet.com/MsRL/LightModel/wish/1557207622 My drawing of refraction]]> 2021-05-25 11:43:42 UTC https://padlet.com/MsRL/LightModel/wish/1557207622 leong_ya_qi1 https://padlet.com/MsRL/LightModel/wish/1557209043 2021-05-25 11:44:28 UTC https://padlet.com/MsRL/LightModel/wish/1557209043 https://padlet.com/MsRL/LightModel/wish/1557318140 Reflection 3D model (my 2d diagram is separate)]]> 2021-05-25 12:29:19 UTC https://padlet.com/MsRL/LightModel/wish/1557318140 https://padlet.com/MsRL/LightModel/wish/1557321044 This is my reflection 2d diagram. ]]> 2021-05-25 12:30:17 UTC https://padlet.com/MsRL/LightModel/wish/1557321044 https://padlet.com/MsRL/LightModel/wish/1557365137 Refraction 3D model]]> 2021-05-25 12:43:50 UTC https://padlet.com/MsRL/LightModel/wish/1557365137 https://padlet.com/MsRL/LightModel/wish/1557368311 Refraction 2d diagram]]> 2021-05-25 12:44:38 UTC https://padlet.com/MsRL/LightModel/wish/1557368311 heidi_ho_zhi_xuan1 https://padlet.com/MsRL/LightModel/wish/1557371936 This is my diagram of my 3D model]]> 2021-05-25 12:45:46 UTC https://padlet.com/MsRL/LightModel/wish/1557371936 https://padlet.com/MsRL/LightModel/wish/1559923687 2021-05-26 02:08:17 UTC https://padlet.com/MsRL/LightModel/wish/1559923687 https://padlet.com/MsRL/LightModel/wish/1559936226 When the light ray enters the glass block, the speed of the light ray decreases as the glass block is optically more dense than air, causing the object to move towards the normal. When the ray leaves the glass block, it moves away from the normal]]> 2021-05-26 02:13:40 UTC https://padlet.com/MsRL/LightModel/wish/1559936226 https://padlet.com/MsRL/LightModel/wish/1559962006 The empty cup on the left has the same optical density throughout as it contains air. Hence no refraction of light occurs. However, when there is two different mediums, one of which is the normal,has different optical density. Air, which is optically less dense, while water(the normal ) is optically more dense. When the light touches the boundary, it goes towards the normal F.A.S.T ( S.T = Slower Towards) and hence the speed of the light ray slows down, causing refraction. This is why the straw appears to look bent. ]]> 2021-05-26 02:24:36 UTC https://padlet.com/MsRL/LightModel/wish/1559962006 xiins https://padlet.com/MsRL/LightModel/wish/1560120755 this is my refraction picture. the water is optically more dense compared to air which is optically more dense , hence the pencil appears bent. when the light touches the boundary( surface of water) ,it goes towards the normal and the speed of the light ray slows down, hence this causes refraction.]]> 2021-05-26 03:39:55 UTC https://padlet.com/MsRL/LightModel/wish/1560120755 jayakumar_hashvand1 https://padlet.com/MsRL/LightModel/wish/1560809507 Reflection occurs when the light ray hits the mirror, the image will be formed in the mirror and will have the same appearance and distance apart from the object before the mirror.]]> 2021-05-26 09:29:43 UTC https://padlet.com/MsRL/LightModel/wish/1560809507 jayakumar_hashvand1 https://padlet.com/MsRL/LightModel/wish/1560884173 Refraction occurs when light enters a different medium which in my diagram is water. Since water is optically denser than air, the light rays turn toward the normal and appears bent.]]> 2021-05-26 10:19:35 UTC https://padlet.com/MsRL/LightModel/wish/1560884173 https://padlet.com/MsRL/LightModel/wish/1561200762 This is my reflection diagram]]> 2021-05-26 12:57:17 UTC https://padlet.com/MsRL/LightModel/wish/1561200762 https://padlet.com/MsRL/LightModel/wish/1561204361 This is my refraction diagram]]> 2021-05-26 12:58:20 UTC https://padlet.com/MsRL/LightModel/wish/1561204361 https://padlet.com/MsRL/LightModel/wish/1561204419 This is my refraction diagram]]> 2021-05-26 12:58:21 UTC https://padlet.com/MsRL/LightModel/wish/1561204419 bernice_loo_shi_en https://padlet.com/MsRL/LightModel/wish/1568254975 This is my 2D refraction diagram. The pencil appears to be bent because water is optically more dense than air, when light travels to different mediums, the speed of light would change , hence causing refraction.]]> 2021-05-28 12:22:12 UTC https://padlet.com/MsRL/LightModel/wish/1568254975 bernice_loo_shi_en https://padlet.com/MsRL/LightModel/wish/1568263920 This is my 2D reflection diagram.]]> 2021-05-28 12:26:10 UTC https://padlet.com/MsRL/LightModel/wish/1568263920