Topic 10: Visible light

1. Complete in workbook:

Summarise core content on pages 163 - 189

Activities to be completed:

• Act. 1 Explore what you know about visible light (page 163)

• Act. 2 Draw a ray diagram (page 165)

• Act. 3 Calculate the distance between the Earth and a star (page 165)

• Act. 4 Observe and record the sequence of colours when light is shone through a triangular prism (page 167)

• Act. 5 Draw diagrams to show how shadows are cast by opaque objects (page 168)

• Act. 6 Predict the effect of moving an object closer to, or further away from, the light source on the size of the shadow that forms (page 169)

• Act. 7 Explain how absorption helps us to see different colours (page 172)

• Act. 8 Understand the scientific terminology used for light reflection (page 175)

• Act. 9 Investigate how images form on different surfaces (page 175)

• Act. 10 Draw a ray diagram (page 176)

• Act. 11 Explain how your brain forms an image (page 178)

• Act. 12 Explain how your brain forms an image (page 180)

• Act. 13 Demonstrate the change in direction of a light ray (beam) through a parallel-sided prism (page 182)

• Act. 14 Predict the refraction of light (page 183)

• Act. 15 Draw a ray diagram of white light passing through a triangular prism (page 184)

• Act. 16 Draw a ray diagram to show refraction of light through a lens (page 186)

• Topic 10 Revision (page 188)

2. Important terminology:

Below is a list of the key terms in Topic 5. Use the "Key word" text boxes on pages 163 - 189 to compile a list of important terminology with definitions in your workbooks

• visible light

• luminous

• radiation

• illuminated

• ray diagram

• spectrum of visible light

• wave

• wavelength

• frequency

• refraction

• dispersed (light)

• reflected (light)

• opaque

• absorbed (light)

• transparent

• normal

• incident ray

• reflected ray

• angle of incidence

• angle of reflection

• plane

• scattered (light)

• cornea

• retina

• pupil

• optic nerve

• tangent

• convex

• concave