Physics Grade 7 Quiz

What is the name used to describe all of space?

• Galaxy

• Solar System

• Universe

• Milky Way

How old is the universe approximately?

• 4.5 billion years

• 14 billion years

• 10 billion years

• 100 billion years

What is the name of the galaxy that contains our solar system?

• Andromeda

• Milky Way

• Triangulum

• Whirlpool

What is the Sun mostly made of?

• Oxygen and nitrogen

• Hydrogen and helium

• Carbon and iron

• Silicon and magnesium

Which planet is the hottest in the solar system?

• Mercury

• Venus

• Earth

• Mars

Which planet is the largest in the solar system?

• Earth

• Jupiter

• Saturn

• Neptune

What is the name of the process by which the Sun produces energy?

• Nuclear fission

• Nuclear fusion

• Combustion

• Radiation

Which of the following is NOT a dwarf planet?

• Pluto

• Ceres

• Eris

• Mars

What are asteroids mostly made of?

• Ice and dust

• Rock and metal

• Gas and dust

• Water and gas

What is a meteor called when it reaches Earth's surface?

• Meteoroid

• Meteorite

• Comet

• Asteroid