Ch. 20, L1 The View From Earth

Front

Orion, Libra, Draco, and Ursa Major are all examples of _________________________.

Back

constellations

Front

What kind of waves are emitted from stars?

Back

electromagnetic waves

Front

What instrument is used to spread light into different wavelengths?

Back

spectroscope

Front

Astronomers use ancient __________ to divide the night sky into different regions.

Back

constellations

Front

Which star property measures the true brightness of a star's light? Options: luminosity, apparent magnitude, color, temperature

Back

luminosity

Front

What factor affects the apparent magnitude of a star? Options: its distance to Earth, its color, its temperature, its life cycle

Back

its distance to Earth

Front

Which term is another word for absolute magnitude? Options: apparent magnitude, luster, luminosity, light-year

Back

luminosity

Front

Why is the Sun the brightest star in our sky?

Back

It is very close to Earth.

Front

Which unit of distance is used to measure distances to stars? Options: Astronomical units, light-years, kilometers, kilowatts

Back

light-years

Front

Which of the following objects has the highest apparent magnitude? Neptune, Sirius, the Moon, Polaris

Back

the Moon