Telescopes

Refracting telescopes with __________ have the best resolution.

• more powerful eyepieces

• larger mirrors

• longer tubes

• larger objectives

Which of the following statements does not refer to radio telescopes?

• They receive waves that are longer than visual light waves.

• They can produce large-area images of radio sources in the heavens with single "look."

• Large reflective dish antennas are the main wave-collecting components.

• Many dishes can be combined to greatly increase the effective size of the receiver antenna.

Tags

NGSS.HS-PS4-5

The main advantage of using orbital observatories like the Hubble Space Telescope is that __________.

• they are easier to use than land-based telescopes.

• they are cheaper to build than land-based telescopes.

• they can look anywhere in the universe at any time.

• they avoid the distortion and absorption of electromagnetic waves by the atmosphere.

What does Reflecting Telescope have?

• Lens
• Mirrors
• Bat ears

What does Refracting Telescope have?

• Sand
• Mirrors
• Lens
• Batmobile 

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

Radio telescopes biggest advantage is that they:

• Can be used during the day
• Can be used in any type of weather
• Almost all radio waves make it to the surface
• All of these

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.

Which bands of electromagnetic radiation are blocked from reaching Earth's surface by our atmosphere?

• visible light

• radio waves

• x-ray

• gamma rays

Tags

NGSS.HS-PS4-4