LO3 Review

It allows the viewer to use both

eyes when viewing distant object

• Binoculars

• Magnifying Glass

• Projector

• Telescope

2. A camera forms an image in a sensitive film while an eye forms the image on the ___.

• cornea

• iris

• lens

• retina

Digital cameras don't use film to capture images, instead they use:

• CCDs

• USBs

• HDDs

• CD-ROMs

7. An optical device used to see very far or distant objects clearly is the ___.

• camera

• compound microscope

• telescope

• simple microscope

8. A compound microscope is an optical system. Which statement does NOT describe it?

• It makes small objects look bigger.

• It is used to magnify distant objects clearly.

• It consists of two converging lens - an objective lens and an eyepiece.

• It has an eyepiece that enlarges the image created by the objective lens.

A refracting telescope uses _______ to focus light.

• Lenses

• Mirrors

• Lasers

• Water

Reflecting telescopes use _______ to focus light.

• Lenses

• Flat mirrors

• Curved Mirrors

• A lens and lasers

Pupil

• Focuses light
• Clear tissue that covers the front of the eye
• Opening through which light enters the eye
• Layer of receptor cells

Lens

• Clear tissue that covers the eye
• Opening of the eye
• Focuses the light
• Regulates amount of light

Can not see things far away without corrective lenses.

• Retina damaged
• Pupil damaged
• Farsightedness
• Nearsightedness