Light Sombrero Galaxy in infrared light (Hubble Space Telescope and Spitzer Space Telescope) S1 Physics Energy

Learning outcomes Success criteria Know how light travels. You can describe how light travels in terms of: direction its ability to bend. Understand what “reflection” is. You can define the term “reflection”. Understand the relationship between incident rays and reflected rays of light. You can state the law of reflection. You can draw ray diagrams to show reflection on straight surfaces, with accurate angles to show: The normal The incident ray The reflected ray

Learning outcomes Success criteria Know what happens when light reflects off concave and convex surfaces. You can draw ray diagrams to show what happens when light reflects off concave and convex surfaces. These should include: 3 incident rays 3 reflected rays The “focal point” (concave only) Understand how satellite signals are transmitted and received. You can draw ray diagrams to show satellite signal transmission and reception, including: The “focal point” (reception only)

Why are we able to see the moon? Light from sun Reflection Hits our eyes

Why are we able to see the sun?

Seeing things We can only see things if they either: Give off light Examples? Reflect light

Reflection What is reflection?

Reflection What is reflection? The bouncing of light off a surface

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Law of Reflection “The angle of incidence equals the angle of reflection.”

Concave surface

Receiving signals

Convex surface

Receiving signals

Transmitting signals

Learning outcomes Success criteria Know how light travels. You can describe how light travels in terms of: direction its ability to bend. Understand what “reflection” is. You can define the term “reflection”. Understand the relationship between incident rays and reflected rays of light. You can state the law of reflection. You can draw ray diagrams to show reflection on straight surfaces, with accurate angles to show: The normal The incident ray The reflected ray

Learning outcomes Success criteria Know what happens when light reflects off concave and convex surfaces. You can draw ray diagrams to show what happens when light reflects off concave and convex surfaces. These should include: 3 incident rays 3 reflected rays The “focal point” (concave only) Understand how satellite signals are transmitted and received. You can draw ray diagrams to show satellite signal transmission and reception, including: The “focal point” (reception only)

Refraction S1 Physics Energy Sombrero Galaxy in infrared light (Hubble Space Telescope and Spitzer Space Telescope) S1 Physics Energy

Learning outcomes Success criteria Know the speed of light in a vacuum. You can quote the speed of light in a vacuum as a number with units. Know what refraction is. You can define the term “refraction”. Understand what happens when white light is passed through a glass prism. You can draw a diagram to illustrate white light passing through a glass prism, showing: the change in angle as it enters the prism the change in angle as it leaves the prism the order of colours produced

Refraction Is the bending of light when it moves from one state (medium) to another.

Learning outcomes Success criteria Know the speed of light in a vacuum. You can quote the speed of light in a vacuum as a number with units. Know what refraction is. You can define the term “refraction”. Understand what happens when white light is passed through a glass prism. You can draw a diagram to illustrate white light passing through a glass prism, showing: the change in angle as it enters the prism the change in angle as it leaves the prism the order of colours produced

Colour mixing S1 Physics Energy Sombrero Galaxy in infrared light (Hubble Space Telescope and Spitzer Space Telescope) S1 Physics Energy

Learning outcomes Success criteria Know the three primary colours of light. You can name the three primary colours of light. Know what secondary colours of light can be produced by mixing different combinations of primary colours. You can name the three secondary colours of light produced by mixing: red and green red and blue green and blue

Learning outcomes Success criteria Know the three primary colours of light. You can name the three primary colours of light. Know what secondary colours of light can be produced by mixing different combinations of primary colours. You can name the three secondary colours of light produced by mixing: red and green red and blue green and blue

How do we see things? S1 Physics Energy Sombrero Galaxy in infrared light (Hubble Space Telescope and Spitzer Space Telescope) S1 Physics Energy

Learning outcomes Success criteria Understand how an image is produced in the human eye. You can label a diagram of the human eye to show the: cornea iris lens retina optic nerve You can state what type of lens is in the human eye. You can draw a diagram to show the path of light as it enters the eye, passes through the lens and hits the retina.

Notes

Learning outcomes Success criteria Understand how an image is produced in the human eye. You can label a diagram of the human eye to show the: cornea iris lens retina optic nerve You can state what type of lens is in the human eye. You can draw a diagram to show the path of light as it enters the eye, passes through the lens and hits the retina.