Show:
Lenses
Parts of the Eye
Optical Bench
Myopia vs. Hyperopia
100

Lens that causes light to converge

What is convex

100

I am the part of the eye that converges light on the retina

What is the lens

100

State the first step of setting up the optical bench

What is placing the brackets on the table

100

In myopia the human eyeball is slightly ____________

what is elongated

200
The term used to describe what happens to light after in passes through a concave lens

Diverge

200

I am the muscle that can adjust the size of the pupil

What is the iris

200

State the second step of setting up the optical bench

What is placing the meter stick in the brackets

200

In hyperopia the human eyeball is slightly __________

shortened

300
When light rays meet together (cross) they form this point.
What is a focal point
300

I am the first transparent membrane of the eye that light passes through

What is the cornea

300

Explain the placement of the object (candle) and the screen holder + screen on the optical bench

What is place the object (candle) and screen + holder at opposite ends of the meter stick.
300

In myopia the _______________ forms inside the eye causing the image on the retina to be blurry


focal point

400
When light from an object passes through a convex lens it will form this type of image on a screen.

Upside down (inverted) image

400

I am the organ that converts light into nerve impulses

What is the retina

400
State the initial placement of the lens holder + lens on the optical bench compared to the object and the screen
What is in the middle of the optical bench.
400

To correct for the shortened eyeball in hyperopia a _________________ lens is needed to ________________ the light rays and form the focal point on the retina instead of behind the eye.

What is a convex lens to converge.

500

Light from an object passes through a concave lens and the following result will be observed on a screen on the opposite side from the object.

No image will form on the screen

500

I carry the nerve impulse to the brain where what I am seeing is processed

What is the optic nerve

500

State the type of image that is formed on the screen by a:

a) convex lens

b) concave lens

a) upside down image

b) no image

500

To correct for the elongated eyeball in myopia a ______________lens is needed to ________________the light rays so the focal point will form on the retina.

what is a concave lens to diverge