1. EXT: Explain why a show is produced in both pictures.
State the order in size of the moon, Sun and Earth.
Describe the differences between solar and a lunar eclipse.
EXT: Explain why a show is produced in both pictures.

2. How fast does sound travel through a solid, liquid and gas?
Keywords: Vibrate, particles, medium, vacuum, speed
What is the difference between a wave?
Transverse
Longitudinal
What is sound?
How fast does sound travel through a solid, liquid and gas?
Draw what loud and quiet sound looks like.
What is the difference if the frequency changes?
Waves
Sound
Light
What does Transparent, translucent and opaque mean?
Eustachian tube
What is reflection?
Why are some images reflected off a surface and why are some not?
How can your sight be corrected using lenses?
What happens to the light?
Which is faster sound or light? Why?
How do you calculate the frequency of a wave?
What is refraction?
Use a diagram to show what happens to light near the normal line.
What are the primary colours?
Why do you see the grass as a green colour?
What is white light made up of?
What happens when you see the colour black?

3. How fast does sound travel through a solid, liquid and gas?
Keywords: Vibrate, particles, medium, vacuum, speed
What is the difference between a wave?
Longitudinal: Sound wave moves in the ________it travels
Transverse: Sound travels at _____angles to the direction
What is sound?
How fast does sound travel through a solid, liquid and gas?
Draw what loud and quiet sound looks like.
What is the difference if the frequency changes?
Waves
Sound
Light
What does Transparent, translucent and opaque mean?
Light can’t go through, some light can and all light can go through.
Eustachian tube
What is reflection?
How can your sight be corrected using lenses?
What happens to the light?
Which is faster sound or light? Why?
How do you calculate the frequency of a wave?
What is refraction?
Use a diagram to show what happens to light near the normal line.
What are the primary colours?
Why do you see the grass as a green colour?
What is white light made up of?
What happens when you see the colour black?

5. Reflection

6. Refraction through a glass block:
Wave slows down and bends towards the normal due to entering a more dense medium
Wave slows down but is not bent, due to entering along the normal
Wave speeds up and bends away from the normal due to entering a less dense medium

7. In the SAME coloured light
Filter
White light
Red Light passes through
Ray Box
The pencil is RED so REFLECTS the RED light We see the pencil as RED

8. In a DIFFERENT coloured light
The pencil is RED so ABSORBS the indigo light. We see the pencil as BLACK because NO colours are reflected
Filter
White light
Ray Box
Indigo Light passes through

9. At right angles
In the same direction