Light and Telescopes

What is the advantage of a telescope or observatory on top of a mountain?

• closer to the object you are looking at

• No one visits it. Less people....better view

• Less gravity to affect the lens

• Less chance light pollution from cities will interfere with an image

What does Reflecting Telescope have?

• Lens

• Mirrors

• Bat ears

What does Refracting Telescope have?

• Sand

• Mirrors

• Lens

• Batmobile 

A telescope that uses lenses and mirrors to collect and focus visible light is called an...

• Refracting Telescope

• Reflecting Telescope

• Optical Telescope

• Radio Telescope

Why are many large optical telescopes located on mountains?

• to be closer to the stars

• to be above part of the atmosphere

• because it is easier to build telescopes on mountains

• to be closer to city lights

Why must Ultra-Violet observing be done in space?

• The ozone blocks most of the UV rays in the surface.

• It’s hard to know exactly where the ozone hole will be to find UV images

• It’s hard to use UV telescopes and radio telescopes together on the surface.

• It’s hard to use UV X-Ray telescopes and radio telescopes together on the surface

What is the MAJOR problem with trying to see stars in or near a city?

• Not as many people with telescopes

• Light pollution

• Clouds

• The stars are too far away.

A spectrograph breaks the light from an object into a(n) ____________, or range of different colors, and produces an image of it.

• spectrum

• spectragraph

• visible light

• prism

Tags

NGSS.MS-PS4-2

Which infrared observatory is located on a plane?

• Arecibo Observatory

• ALMA

• SOFIA

• Keck 1 and 2

What is the primary function of a telescope?

• To magnify distant objects

• To measure the speed of light

• To detect sound waves

• To analyze chemical compositions