Light And Telescopes

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Questions Bank

Our Place in the Universe
Patterns in the Skymotions of Earth
Laws of Motion
Light and Telescopes
The Formation of Stars and Planets
Terrestrial Worlds in the Inner Solar System
Atmospheres of Venus, Earth, and Mars
The Giant Planets
Small Bodies of the Solar System
Measuring the Stars
Our Star: The Sun
Evolution of Low-Mass Stars
Evolution of High-Mass Stars
The Expansion of Space
The Realm of the Galaxies
Our Galaxy: The Milky Way
Modern Cosmology and the Origin of Structure
Life in the Universe

All Questions

Question 1

Free

True/False

A radio photon travels more slowly than a gamma ray photon.

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True

False

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Question 2

Free

True/False

It is possible for light to travel slower than 300,000 km/s.

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True

False

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Question 3

Free

True/False

The total number of neutrons and protons determine the type of chemical element it is.

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True

False

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Question 4

Free

True/False

Electric fields are created by charged particles.

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True

False

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Question 5

Free

True/False

Moving charges produce magnetic fields.

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True

False

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Question 6

True/False

The energy of a photon is inversely proportional to its wavelength.

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True

False

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Question 7

True/False

The image below shows an example of a refracting telescope.

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True

False

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Question 8

True/False

Chromatic aberration is a problem that limits the image quality of reflecting telescopes.

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True

False

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Question 9

True/False

Astronomers usually study distant objects by looking at them directly through the eyepiece of a telescope.

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True

False

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Question 10

True/False

How faint an object we can see with our eyes is limited only by the integration time of our eye (how often it processes input).

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True

False

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Question 11

True/False

The image quality of most optical telescopes is limited by differential atmospheric refraction experienced by light as it passes through the Earth's atmosphere.

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True

False

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Question 12

True/False

The 305-m Arecibo radio telescope has a resolution that is no better than that of the human eye.

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True

False

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Question 13

True/False

The image below shows the Very Large Array in New Mexico.Radio telescopes are often used in interferometric arrays to increase light gathering power.

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True

False

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Question 14

True/False

In the past,astronomers have placed telescopes in highflying aircraft in an effort to rise above the water vapor in the Earth's atmosphere.

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True

False

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Question 15

True/False

The highest spatial resolution images that we have of many planets' surfaces come from the Hubble Space Telescope.

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True

False

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Question 16

True/False

One of the reasons why the Hubble Space Telescope has better spatial resolution than a 4-m ground-based telescope is that it has a larger mirror.

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True

False

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Question 17

Multiple Choice

The speed of light was first determined by which scientist?

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Galileo

Rømer

Kepler

Newton

Einstein

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Question 18

Multiple Choice

The speed of light in a vacuum is __________ .

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300,000 m/s

300,000 mph

300,000 km/s

300,000,000 mph

infinite

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Question 19

Multiple Choice

How does the speed of light traveling through a medium (such as air or glass)compare to the speed of light in a vacuum?

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It is the same as the speed of light in a vacuum.

It is always less than the speed of light in a vacuum.

It is always greater than the speed of light in a vacuum.

Sometimes it is greater than the speed of light in a vacuum,and sometimes it is less,depending on the medium.

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Question 20

Multiple Choice

The light-year is a unit of:

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time

distance

speed

energy

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