Chapter 24 and 25 Studying the Sun and Beyond Our Solar System

What does a prism do?

• combines the many colors of visible light into white light by bending each wavelength at a different angle

• separates sunlight into ultraviolet and infrared radiation

• separates visible light into its many colors by bending each wavelength at a different angle

• changes the wavelength of electromagnetic radiation that passes through it

Which of the following types of visible light has the longest wavelength?

• red

• green

• violet

• blue

A star's spectrum can tell astronomers

• how big the star is

• the star's chemical composition

• the age of the star

• how far away the star is from Earth

Which type of spectrum does the radiation from most stars produce?

• absorption spectrum

• emission spectrum

• discontinuous spectrum

• continuous spectrum

What does the use of the Doppler effect tell astronomers about a star?

• a star's exact velocity as it moves in the galaxy

• the chemical composition of the star

• its diameter compared to that of the sun

• whether a star is moving toward or away from Earth

A typical incandescent light bulb produces a(n)

• absorption spectrum

• emission spectrum

• discontinuous spectrum

• continuous spectrum

What does a refracting telescope use to produce an image?

• a mirror

• a spectroscope

• a prism

• a lens

What does a reflecting telescope use to produce an image?

• a mirror

• a spectroscope

• a prism

• a lens

What advantage do space telescopes have over Earth-based telescopes?

• They are much cheaper to build

• They do not have interference from the atmosphere

• They do not need lenses or mirrors to gather light

• The weaker gravity around them makes images sharper

The Chandra X-ray Observatory is used to study

• black holes

• exploding stars

• the solar system's outer planets

• the sun