Astronomy Star Quiz

What unit do astronomers use to measure the distance of stars?

• Kilometers

• Light years

• Miles

• Astronomical units

What is a light-year?

• The distance light travels in a vacuum in a year

• The time it takes for light to travel around the Earth

• The distance between the Earth and the Sun

• The time it takes for light to travel to the Moon

Which star is the closest to the Sun?

• Sirius

• Betelgeuse

• Proxima Centauri

• Alpha Centauri

What is the term for the change in position of an object with respect to a distant background?

• Parallax

• Refraction

• Diffraction

• Reflection

Why are astronomers able to observe stars from two different positions?

• Because the Earth rotates on its axis

• Because the Earth moves in its orbit

• Because the stars move rapidly

• Because of the Earth's atmosphere

How do astronomers determine the distance of nearby stars?

• By measuring their brightness

• By measuring their parallax

• By measuring their color

• By measuring their size

How do astronomers classify stars?

• By their age and distance

• By their color, size, and brightness

• By their shape and orbit

• By their speed and direction

What does the color of a star indicate?

• Its age

• Its distance from Earth

• Its temperature

• Its chemical composition

What color do the hottest stars appear?

• Red

• Yellow

• Green

• Blue

What is the color spectrum of stars from hottest to coolest?

• Reds to yellows to greens to blues

• Blues to greens to yellows to reds

• Greens to blues to reds to yellows

• Yellows to reds to blues to greens

Tags

NGSS.HS-ESS1-3