Telescopes

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

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NGSS.MS-PS4-2

One of the issues created by the air surrounding us is:

• Interferometry

• Reflection

• Interference

• Atmospheric blurring

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NGSS.HS-PS4-3

What type of telescope can work 24 hours a day and even be used in the rain?

• Refracting Telescope

• Radio Telescope

• Newtonian Telescope

• Solar Telescope

What types of telescopes have to be placed in space? (Choose all that apply)

• X-ray Telescopes

• Gamma ray Telescopes

• Infrared Telescopes

• Radio Telescopes

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NGSS.HS-PS4-3

In general the bigger the telescope's objective the better your _____

• resolution
• magnification
• attitude
• orientation

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NGSS.HS-PS4-1

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

• Refracting Telescope
• Reflecting Telescope
• Optical Telescope
• Radio Telescope

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NGSS.HS-PS4-5

Why is the Hubble telescope located in space?

• So it can be closer to the stars it magnifies
• They have very large optical lenses
• So its images arent distorted by Earth's atmosphere 
• So it can be operated by astronauts 

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

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