Quiz on the Formation of the Solar System

What is the primary hypothesis about the formation of the Solar System?

• It was formed from a single large planet.

• It was formed from the collision of two stars.

• It was created by a supernova explosion.

• It was formed from a cloud of dust and gas.

What happens to the gravity of objects as they increase in mass?

• Their gravity decreases.

• Their gravity remains the same.

• Their gravity increases.

• Their gravity becomes negligible.

Which two planets spin in the opposite direction to the others?

• Jupiter and Saturn

• Venus and Uranus

• Mercury and Neptune

• Earth and Mars

What is a nebula?

• A type of planet.

• A cloud of dust and gas in space.

• A star that has exploded.

• A black hole.

How do scientists study the formation of stars and solar systems?

• By conducting experiments in labs.

• By creating computer models.

• By using telescopes only.

• By observing them directly.

What is the result of particles of dust and gas sticking together?

• They lose their gravity.

• They become smaller.

• They disappear.

• They get bigger and their gravity becomes stronger.

What would happen if the Sun disappeared?

• Earth would be pulled into the Sun.

• Earth would remain in its orbit.

• Earth would float away into space.

• Earth would orbit another planet.

What is the direction of the orbits of the planets around the Sun?

• The same direction.

• Counterclockwise only.

• Clockwise only.

• Random directions.

What do scientists use to make predictions about star formation?

• Historical data.

• Mathematical equations.

• Computer models.

• Direct observations.

What is the significance of gravity in the formation of celestial bodies?

• It only affects large planets.

• It helps in the attraction of more mass.

• It has no effect.

• It prevents the formation of stars.