Telescope and Electromagnetic Spectrum Quiz

The LEAST desirable location for an optical telescope is likely to be

• in a large city

• On a mountain peak

• In a desert

• On a remote island

Telescope lenses are able to gather more light than the lens of the human eye primarily because telescope lenses are

• Larger

• Made of glass

• curved

• coated with aluminum

What is a major reason why telescopes must be able to move?

• to avoid temperature differences in the dome

• to slide back under their domes in the daytime

• to stay pointed at the same star all night

• to avoid falling stars

The two major properties of a telescope are;

• how well it reflects light and how much it illuminates an object

• how much it collects and focuses light

• how much it magnifies and illuminates an object

• How big the lens is and how well it reflects light

The major advantage of the Hubble Space Telescope over ground-based telescopes is that the Hubble

• needs no dome

• is above most of Earth’s atmosphere

• require no servicing

• can detect radiowaves

Radio waves pass unchanged through clouds in Earth’s atmosphere. This means that

• Radio telescopes can detect objects that optical telescopes cannot.

• Radio dishes are larger in diameter than telescope mirrors.

• Radio astronomers can collect data only after dark.

• Radio astronomers can collect data during the day and when it is cloudy.

One reason that infrared wavelengths are difficult to study is that

• few objects in space radiate infrared light

• no method of detecting infrared light is known

• most infrared wavelengths are absorbed by Earth’s atmosphere

• infrared changes to ultraviolet in sunlight

ALL of the following are wavelengths of radiation that get mostly blocked by the atmosphere EXCEPT

• Gamma Rays

• Microwaves

• Radio Waves

• Xray Waves

Which of the following travels the slowest?

• radio waves

• X rays

• visible light

• Infrared light

What type of telescopes use mirrors to focus the light of the image?

• Reflecting

• Refracting

• Radio telescope

• Monocle