KS3 Waves 06: Cameras and the Human Eyes

What do both cameras and eyes use to focus light?

• Lenses

• Filters

• Mirrors

• Prisms

What part of the eye contains photo-sensitive cells?

• Pupil

• Retina

• Iris

• Lens

What is the function of the optic nerve?

• To transmit signals to the brain

• To interpret images

• To produce electrical impulses

• To focus light

In older cameras, what was the photo-sensitive material?

• Camera film

• Digital sensor

• Memory card

• Photographic paper

How do modern cameras produce an image?

• Using chemical changes

• Using electrical impulses

• Using mechanical parts

• Using magnetic fields

What happens to light rays when they pass through a lens?

• They are scattered

• They are reflected

• They are absorbed

• They are refracted

What is a key difference between the lens of an eye and a camera?

• The eye's lens is made of glass

• The camera's lens can change shape

• The eye's lens can change shape

• The camera's lens is made of tissue

Where is the image produced by a camera saved?

• In the brain

• On photographic paper

• On a memory card

• On the retina

What does the brain do with the electrical impulses from the optic nerve?

• It amplifies them

• It interprets them as vision

• It ignores them

• It stores them

What is a similarity between the images produced by cameras and eyes?

• They are both right-side up

• They are both stored digitally

• They are both inverted

• They are both black and white