Light

Question 1

What is light?

Light has to come from a…..

We say that light …………. from one place to another

Light transmits in ………..waves

Light transmits through ………. and (partially) ……… objects

Answer 1

Source
Transmits
Transverse
Transparent, translucent

Question 2

On a mirror the light reflects evenly. This means that the……….

Answer 2

Angle of incidence=angle of reflection

Question 3

On a rough surface you can see yourself (t/f)

This is because………

Answer 3

False

This is because the light is not reflected evenly on the surface. This is only possible on a smooth surface e.g. mirror

Question 4

The eye

Expands and contracts to let only curtain amounts of light through the pupil:…….

Focuses the light:………

Let’s light in:……….

Refracts and changes the direction of light into the pupil and also protects the eye:………..

Contains rods and cones that detect the light and convert the light into nerve impulses, then sends it to the optic nerve:……….

Send the nerve impulses to the brain to be processed:………….

Answer 4

Iris
Lens
Pupil
Cornea
Retina
Optic nerve

Question 5

What is a luminous object?

Answer 5

An object that produces light

Question 6

What is a non luminous object?

Answer 6

An object that only reflects light

Question 7

What is the difference between the refracted Ray to the ray of Incidence and reflection?

Answer 7

The refracted Ray bend towards its normal