The eye - S1

What part of the eye detects light?

• Lens

• Retina

• Optic nerve

• Cornea

What kind of image is formed on the retina?

• blurred

• inverted (upside down)

• right way up

• black and white

What does the brain do to the image received from the retina?

• Flips it the right way up

• Makes it brighter

• Changes the colour

• Moves it to the side

Which part of the eye sends electrical signals to the brain?

• Pupil

• Retina

• Lens

• Optic nerve

What is the function of the lens in the eye?

• Detects light

• Refracts light so it forms an image on the retina

• Reflects light so it forms an image on the retina

• Sends signals to the brain

• Controls the amount of light entering

How is a camera similar to the eye?

• It uses an optic nerve

• It has a brain to process images

• It produces images using light

• It is made of living cells

Which part of a camera is like the pupil of the eye?

• Lens

• Aperture

• CCD

• Shutter

What is the function of the lens in a camera?

• To focus light onto the image sensor

• To capture the image

• To store the charge

• To process the image

Which of the following is NOT true about a real image?

• It can be projected onto a screen

• It is formed on the retina

• It is always the right way up

• It can be captured by a camera

In a digital camera, what replaces photographic film?

• Retina

• Aperture

• CCD (charge-coupled device)

• Optic nerve