Astronomical Telescopes and Instruments

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Funded by Title V HIS Grant at LAMC and U.S Department of Education

Corresponds to Ch 4in book Astro by Seeds

Prepared by: Julissa Garcia, Aramik Yousefian

Hagop Hadjinian, Tatevik Grigoryan

Activity director:Lilit Haroyan

Faculty Advisor:Richard Rains

1. If a telescope has a large Aperture…

HINT

There is less light

There is less diffraction None of the Above

It has no power to resolve detail

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HINT

There is less light

There is less diffraction None of the Above

It has no power to resolve detailCorrect!

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1. If a telescope has a large Aperture…

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1. If a telescope has a large Aperture…

IncorrectThe larger the Aperture the less the diffraction (when images are hard to see).

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HINT

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It lessens the difficulty to see

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2. What does a Refracting telescope use?

HINT

Glass lens

Computer Rainbows

Mirror

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HINT

Glass lens

Computer Rainbows

Mirror

Correct!next

2. What does a Refracting telescope use?

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2. What does a Refracting telescope use?

HINT

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IncorrectRemember Mirror Lens Reflect (reflecting telescope), whereas Glass Lens are Refracting telescope.

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Galileo had a refracting telescope

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3. According to the Spectrum of Visible Light…

HINT

Violet has long wavelengths

Yellow has short wavelengths

Pink has the strongest wavelengths

Red has long wavelengths

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HINT

Violet has long wavelengths

Yellow has short wavelengths

Pink has the strongest wavelengths

Red has long wavelengths

Correct!next

3. According to the Spectrum of Visible Light…

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3. According to the Spectrum of Visible Light…

IncorrectRed has longer wavelengths than blue, which are short.

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HINT

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This is the color of tomatoes

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4. A Photon is a:

HINT

A Photographic camera

A Particle of light A red wavelength

A sub particle of fungi

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HINT

A Photographic camera

A Particle of light A red wavelength

A sub particle of fungi

Correct!next

4. A Photon is a:

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Incorrect Photons are particles of light that we cannot see but move through light.

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4. A Photon is a:

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Photons are passing through you right now through the computer screen

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5. VLA stands for what?

HINT

Very Large Array

Violet Length Array Radio Images of the Sky

Vegetarians Love Asparagus

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HINT

Very Large Array

Violet Length Array Radio Images of the Sky

Vegetarians Love AsparagusCorrect!

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5. VLA stands for what?

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Incorrect Very Large Arrays look like huge Dish satellites with antennas.

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5. VLA stands for what?

HINT

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It is a very large dish…

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6. According to the Electromagnetic Spectrum:

HINT

Gamma Rays are the strongest

X-Rays are the weakest None of the above

Radio waves are strongest

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HINT

Gamma Rays are the strongest

X-Rays are the weakest None of the above

Radio waves are strongest

Correct!next

6. According to the Electromagnetic Spectrum:

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Incorrect Gamma rays are deadly, followed by x-rays and other weaker forms of waves are microwave and radio (weakest).

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6. According to the Electromagnetic Spectrum:

HINT

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They appear in the right side of the spectrum…

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7. UV wavelengths…

HINT

Are Long wavelengths

Are short wavelengths All wavelengths

Has No wavelengths

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HINT

Are Long wavelengths

Are short wavelengths All wavelengths

Has No wavelengths

Correct!next

7. UV wavelengths…

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Incorrect In the spectrum everything on the left is longer wavelengths, and everything on the right has shorter wavelengths, the UV rays are in middle left.

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7. UV wavelengths…

HINT

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They are next to visual lights on the left side of the spectrum.

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8. VLBI stands for what?

HINT

Very Large Batman Ice

Very Large Base Infrared None of the above

Very Large Base interferometer

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HINT

Very Large Batman Ice

Very Large Base Infrared None of the above

Very Large Base interferometerCorrect!

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8. VLBI stands for what?

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8. VLBI stands for what?

HINT

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Incorrect VLBI’s use Interferometry in radio arrays to get images and information from space.

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It uses interferometry…

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HINT

The study of celestial objects through radio

The study of astronomy through stars None of the above

The study of volcanic activity

9. Radio astronomy is…

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HINT

The study of celestial objects through radio

The study of astronomy through stars None of the above

The study of volcanic activity

Correct!next

9. Radio astronomy is…

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9. Radio astronomy is…

HINT

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IncorrectRadio includes all aspects of space discovery through radio.

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Astronomy is the study of the universe…radio implies…

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10. Chromatic aberration is seen in which type of telescope?

HINT

Reflecting telescopes

Radio telescopes Galileo’s telescope

Refracting telescopes

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HINT

Reflecting telescopes

Radio telescopes Galileo’s telescope

Refracting telescopes

10. Chromatic aberration is seen in which type of telescope?

Correct!next

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10. Chromatic aberration is seen in which type of telescope?

IncorrectChromatic aberration is when the colors get a “smudged” look.

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HINT

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These are telescopes with glass lens

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