P1.3.4 The Eye and the Camera

Question 1

When we see something, the image is formed on the _______ of our eye.

Answer 1

retina

Question 2

Light enters through the _________ of our eye

Answer 2

pupil

Question 3

The size of the pupil is controlled by the ?

Answer 3

iris

Question 4

When we see an object, the image is ________ on our retina.

Answer 4

inverted (or upside down)

Question 5

The _______ focusses the image on the

Answer 5

lens

Question 6

The retina is lined with cells called … ?

Answer 6

photoreceptors

Question 7

The two types of photo receptors are called?

Answer 7

rods and cones

Question 8

When light hits the photoreceptors on our retina a __________ reaction takes place

Answer 8

chemical

Question 9

The photoreceptors send an electrical impulse along the _______ ________ to the brain.

Answer 9

optic nerve

Question 10

One of the simplest cameras is called a ________ camera

Answer 10

pinhole

Question 11

The image in a pinhole camera is formed on…?

Answer 11

a screen

Question 12

An image formed on a screen is a ______ image

Answer 12

real

Question 13

One of the simplest cameras is called a ________ camera

Answer 13

pinhole