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Something About Telescopes Trivia Quiz

I remember getting my first telescope as a lad. Better still, I remember getting several as an adult. Here is some practical knowledge about telescopes in this quiz.

A multiple-choice quiz by beterave. Estimated time: 4 mins.

Author
beterave

Time
4 mins

Type
Multiple Choice

Quiz #
299,536

Updated
Dec 03 21

# Qns
10

Difficulty
Average

Avg Score
8 / 10

Plays
933

One at a Time - Single Page - Timed Game

Question 1 of 10

1. What fact determines how much you will see with a telescope? Hint

the length of the tube

the size of the aperture

the brand of the telescope

the type of mount

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Question 2 of 10

2. This type of telescope uses an objective glass lens. What type of telescope is this? Hint

refracting telescope

multi-Image telescope

reflecting telescope

zoom telescope

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Question 3 of 10

3. What type of objective device does a reflector use? Hint

a mirror

dual reflectors

a silicon base

crystals

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Question 4 of 10

4. A rock steady mount is very important to have for observing. The most common type used on small refractors is the Altazimuth mount. It works by which method? Hint

push and pull

turn and twist

lift and twist

pan and tilt

5. Equatorial mounts are generally used and preferred over altazimuth mounts. They tend to be sturdier, and come with controls to compensate for drift. What needs to be done before you can properly use an EQ mount? Hint

lunar calibration

astro configuring

nothing

polar alignment

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Question 6 of 10

6. A good telescope will always have a finder scope attached to it.

True

False

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Question 7 of 10

7. You must never attempt to view the sun without a filter through any telescope because? Hint

Its bad luck

the solar radiation could blind you

telescopes are for night time use only

you will lose polar alignment

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Question 8 of 10

8. Eyepieces are essential equipment for your telescope. Most observers use low power, medium power, and high power eyepieces. What piece of equipment will boost the focal length of your eyepieces? Hint

a Barlow lens

a magnifying filter

a tube extension

a larger diagonal

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Question 9 of 10

9. Aside from weather, what is the biggest problem backyard astronomers have when viewing objects? Hint

trees

light pollution

nosy neighbors

getting on the top of the roof safely

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Question 10 of 10

10. Whether you use a refractor or a reflector, both are good for planetary and lunar observation.

True

False

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Quiz Answer Key and Fun Facts

1. What fact determines how much you will see with a telescope?

Answer: the size of the aperture

The size of the aperture is the only determining factor. Larger apertures collect more light,thereby showing fainter objects and finer detail.

2. This type of telescope uses an objective glass lens. What type of telescope is this?

Answer: refracting telescope

Refracting telescopes are great starter scopes. They are easy to manage, and produce sharp images.

3. What type of objective device does a reflector use?

Answer: a mirror

Reflectors use a mirror as its primary objective . Glass lenses of equal size would be very expensive and would require a longer and hence heavier tube.

4. A rock steady mount is very important to have for observing. The most common type used on small refractors is the Altazimuth mount. It works by which method?

Answer: pan and tilt

Altazimuth mounts swivel freely from side to side (azimuth),and tilt up and down for altitude. It requires no special settings or adjustments. They are very easy to use.

Answer: polar alignment

Before you can properly use an EQ mount,the latitude must be set along with the polar axis aligned so that it points toward the celestial pole. This procedure is known as polar alignment. It becomes easier after a short while.

6. A good telescope will always have a finder scope attached to it.

Answer: true

All high quality telescopes should include a low power finder scope or its equivalent when you purchase it.

7. You must never attempt to view the sun without a filter through any telescope because?

Answer: the solar radiation could blind you

NEVER attempt to view the sun without a solar filter, shield or lens. The concentrated solar radiation could blind you in a nanosecond. This caution is engraved on even advanced model telescopes.

Answer: a Barlow lens

A Barlow lens in either 2X or 1.5X is recommended. A 2X will increase your 32mm to 16mm,doubling its focal length.

9. Aside from weather, what is the biggest problem backyard astronomers have when viewing objects?

Answer: light pollution

Light pollution is by far the biggest problem. You can travel 20 miles beyond your urban environment and still be plagued by the sodium in the atmosphere that artificial light causes. Light pollution filters help some, but generally only work best on larger apertures.

10. Whether you use a refractor or a reflector, both are good for planetary and lunar observation.

Answer: True

Both are good for either planetary or lunar observation. Refractors show very sharp images, reflectors are superb light gatherers.

Source: Author beterave

This quiz was reviewed by FunTrivia editor Bruyere before going online.
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