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Unit 6F: How we see things. How we see things. T. Unit 6F: Vocabulary. Some useful words Opaque Reflect Reflection Light beam Mirror Light travelling. A material that light cannot pass through. When light ‘bounces’ off a surface in particular shiny surfaces such as mirrors.

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unit 6f how we see things
Unit 6F: How we see things

How we see things

T

Unit 6F: How we see things

unit 6f vocabulary
Unit 6F: Vocabulary

Some useful words

Opaque

Reflect

Reflection

Light beam

Mirror

Light travelling

A material that light cannot pass through

When light ‘bounces’ off a surface in particular shiny surfaces such as mirrors

An image viewed in a mirror, for example

A thin column of light such as projected by a torch

A shiny surface that reflects light

Light is always moving

V

Unit 6F: How we see things

unit 6f how does light travel
Unit 6F: How does light travel?

How does light travel?

D

Unit 6F: How does light travel?: L.O. 1, 2: N.C. 4.3a

unit 6f how does light travel1
Unit 6F: How does light travel?

D

Unit 6F: How does light travel?: L.O. 1, 2: N.C. 4.3a

unit 6f how do we see things
Unit 6F: How do we see things?

How do we see things?

D

Unit 6F: How do we see things?: L.O. 3: N.C. 4.3d

unit 6f reflection
Unit 6F: Reflection

Reflection

D

Unit 6F: Reflection: L.O. 4, 5: N.C. 4.3c

unit 6f reflection1
Unit 6F: Reflection

D

Unit 6F: Reflection: L.O. 4, 5: N.C. 4.3c

unit 6f more reflections
Unit 6F: More reflections

More reflections

When light is reflected it’s direction of travel changes

angle i = angle r

D

Unit 6F: More reflections: L.O. 6, 7: N.C. 4.3c

unit 6f shiny and dull surfaces
Unit 6F: Shiny and dull surfaces

Shiny and dull surfaces

You are going to investigate what types of surfaces reflect light the best, shiny or dull.

Test each of the surfaces to record whether it reflects a light beam from a torch and whether you can see yourself in the surface or not.

Can you draw any conclusions from your results?

I

Unit 6F: Shiny and dull surfaces: L.O. 8, 9: N.C. 4.3c

unit 6f shadow investigation
Unit 6F: Shadow Investigation

Shadow Investigation

How can we change the size and position of the shadow?

Plan how you are going to investigate this?

What will you change

Unit 6F: Shadow investigation: L.O. 10, 11, 12, 13: N.C. 4.3b

unit 6f shadow investigation1
Unit 6F: Shadow Investigation

Shadow Investigation – support slide

How can we change the size and position of the shadow?

What happens to the size of the shadow when you move the figure nearer to the light?

What happens to the shadow when you move the figure further from the light?

Does moving the screen have the same effect?

Does moving the light make a difference?

I

Unit 6F: Shadow investigation: L.O. 10, 11, 12, 13: N.C. 4.3b

unit 6f shadow investigation2
Unit 6F: Shadow Investigation

Shadow Investigation – extension slide

Measure the distance between the figure and the screen and the height to the shadow.

Record the results in a table

Plot your results on a line graph of Distance between figure and screen vs. height of shadow.

Are there any patterns in the results you have?

Unit 6F: Shadow investigation: L.O. 10, 11, 12, 13: N.C. 4.3b

unit 6f summary

Travels from a source

In a straight line

Object is seen

By mirrors

Light enters our eyes

Direction of beam is changed

Light

Reflections

Direction of a ray can be indicated by an arrow

Shiny surfaces better than dull

How we see things

Formed by opaque objects

Object nearer light

Shadows

Size can be

changed

Object nearer surface

Unit 6F: Summary

Concept Map

S

Unit 6F: Summary: L.O. 14: N.C.