Science - Light
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What is light?
Light is a form of energy
What are luminous objects? Give an example
They make their own light, for example, the sun
What are non luminous objects? Give an example
They reflect light, for example, the moon
State a property of light
Light travels in striaght lines
Light travels faster than sound
This is light bouncing back off a surface
What is a periscope?
A periscope has two mirrors at opposite ends of a tube
It is used to see over things
Give a use for a periscope
To see over a high wall or crowds
Used in submarines
What is a shadow?
This is a dark area behind something where the light cannot reach
What is dispersion?
This is the splitting of light into the seven colours of the spectrum
List the seven colours of the spectrum
Ring Out Your Great Bells In Victory
Refraction is the bending of light as it passes from one surface to another
State the function of a lens
To reflect or bend light
List the two types of lens
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