Exploring the Universe

What is the largest planet in our solar system?

• Saturn

• Earth

• Jupiter

• Mars

What force keeps the planets in orbit around the sun?

• Centrifugal force

• Frictional force

• Magnetic force

• Gravitational force

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

• Milky Way

• Triangulum

• Andromeda

• Whirlpool

What is the speed of light in a vacuum?

• 300,000,000 meters per second

• 299,792 kilometers per second

• 150,000,000 meters per second

• 299,792,458 meters per second

What is a black hole?

• A black hole is a vacuum cleaner used in space.

• A black hole is a planet with a strong magnetic field.

• A black hole is a type of star that emits light.

• A black hole is a region in space with a gravitational pull so strong that nothing can escape from it.

Who was the first person to walk on the moon?

• Yuri Gagarin

• Buzz Aldrin

• Michael Collins

• Neil Armstrong

What is the main component of the sun?

• Oxygen

• Helium

• Hydrogen

• Carbon

What phenomenon causes the northern lights?

• The interaction of solar wind with Earth's magnetic field and atmosphere.

• The reflection of sunlight on ice crystals.

• The eruption of volcanoes releasing gases.

• The alignment of stars in the night sky.

What is the difference between a comet and an asteroid?

• Comets orbit the Earth, while asteroids orbit the Moon.

• Asteroids have tails when they approach the Sun, unlike comets.

• Comets are made entirely of metal, while asteroids are made of ice.

• Comets are icy bodies that develop tails when near the Sun, while asteroids are rocky and metallic bodies without tails.

What is the term for a planet outside our solar system?

• Comet

• Exoplanet

• Asteroid

• Moon