Physics Grade 8 Quiz 1

What is the name of our galaxy?

• Andromeda

• Milky Way

• Triangulum

• Sombrero

What is the closest star to Earth?

• Proxima Centauri

• Sun

• Sirius

• Alpha Centauri

What shape is the Milky Way galaxy?

• Elliptical

• Irregular

• Spiral

• Circular

How many galaxies are estimated to exist in the universe?

• Fewer than 100

• Between 100 and 1,000

• Between 1,000 and 1,000,000

• More than 1,000,000

What is the word that describes all of space?

• Solar System

• Galaxy

• Universe

• Cosmos

Why can we see other galaxies in space?

• They are very close to Earth.

• They emit light that travels across space.

• They reflect sunlight.

• They are made of gas and dust.

What is the largest known asteroid in the asteroid belt?

• Vesta

• Pallas

• Ceres

• Eros

Where is the asteroid belt located?

• Between Earth and Mars

• Between Mars and Jupiter

• Between Jupiter and Saturn

• Beyond Neptune

What prevents asteroids in the asteroid belt from forming a planet?

• The Sun's gravity

• Jupiter's gravity

• Earth's gravity

• Saturn's gravity

What are most asteroids made of?

• Ice and gas

• Rock and metal

• Water and carbon

• Dust and gas