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Primary School -Science |  |  |\n| --- | --- | --- |\n| Topic: Light | Year: 6 | Strand: Physics |\n\nlight  \nlight source  \nreflection  \nincident ray reflected ray  \nthe law of reflection  \nA form of energy that travels ina wave rom a source.  \nAn object that makes its own light.  \nReflection is when light bounces off a surface, changing the direction of a ray of light.  \nA ray of light that hits a surface.  \nA ray of light that has bounced back after hitting a surface  \nThe law states that the angle of the incident ray is equal to the angle of the reflected ray.  \nWe need light to be able to see things. Light waves travel out from sources of light in straight lines. These lines are often called rays or beams of light.  \nLight from the sun travels in a straight line and hits the chair. The light ray is then reflected off the chair and travels in a straight line to the girl’s eye, enabling  \nher to see the chair.  \nThe law of reflection states that the angle of incidence is equal to the angle of  \nThe angle of reflection  \nis the angle between the normal line and the reflected ray light.  \nreflection. Whenever light is reflected from a surface, it obeys this law.  \nThe angle of incidence is the angle between the normal line and  \nthe incident ray  \nof light.  \nangle of reflection  \nreflected ray  \nnormal line  \nincident ray  \nangle of incidence  \nLight travels as a wave. But unlike waves of water or sound waves, it does not need a medium to travel through.  \nThis means light can travel through a  \nvacuum-a completely airless space.  \nKey Vocabulary Key Knowledge  \nrefraction  \nvisible spectrum  \nprism  \nshadow  \ntransparent  \ntranslucent  \nopaque  \n\n| This is when light bends as it passes from one medium to another. E.g Light bends when it moves from air into water. |\n| --- |\n| Light that is visible to the human eye. It is made up of a colour |\n| A prism is a solid 3D shape with flat sides. The two ends are an equal shape and size. A transparent prism separates out visible light into all the colours of the spectrum. |\n| An area of darkness where light has been blocked. |\n| Describes objects that let light travel through them easily, meaning you can see through the object. |\n| Describes objects that let some light through, but scatters the light so we can’t see through them properly. |\n| Describes objects that do not let any light pass through them. |\n\nThe spoon in this water looks as if it is bent. This is because light bends when it moves from air to water. When light bends in this way, it is called refraction.  \nA shadow is always the same shape asthe object that casts it. This is because when an opaque object is in the path of light travelling from a light source, it will block the light rays that hit it, while the rest of the light can continue travelling.  \nYear 6  \nIsaac Newton shone a light through a transparent prism, separating out light into the colours of the rainbow (red, orange, yellow, green, blue, indigo and violet) -the colours of the spectrum. All the colours together merge and make visible light.  \nShadows can  \nalso be elongated or shortened depending on the angle of the light source. A shadow is also larger when the object is closer to the light source. This is because it blocks more of the light.","cbCaiatXgp5jpm0f","https://ap.wps.com/l/cbCaiatXgp5jpm0f","pdf",1480131,"English","# Light\n## Reflection and the Law of Reflection\n## Light as a Wave and Vacuum\n## Refraction and Light Bending\n## The Visible Spectrum and Prisms\n## Shadows and Light Transmission","[{\"question\":\"What is reflection and what does the law of reflection say?\",\"answer\":\"Reflection is when light bounces off a surface, changing the direction of a ray. The law states the angle of the incident ray equals the angle of the reflected ray.\"},{\"question\":\"What is refraction?\",\"answer\":\"Refraction is when light bends as it passes from one medium to another, such as from air into water.\"},{\"question\":\"How do transparent, translucent, and opaque materials affect visibility?\",\"answer\":\"Transparent objects let light travel through easily so you can see through them. Translucent objects let some light through but scatter it, so you can’t see through properly. Opaque objects do not let light pass through.\"}]","Light - Year 6 Physics - Science Topic | PDF",1790589822]