The formation of solar system

What is the name of the hypothesis that explains the formation of the solar system?

• Big Bang Theory

• Nebular Hypothesis

• Plate Tectonics

• Evolution Theory

Which type of planets formed close to the Sun where it was very hot?

• Gas giants

• Ice giants

• Rocky planets

• Dwarf planets

What are the planets called that formed farther from the Sun where it was colder?

• Rocky planets

• Gas giants

• Ice giants

• Dwarf planets

How did moons form around planets according to the nebular hypothesis?

• By volcanic activity

• By being captured by a planet's gravity

• By splitting from the Sun

• By colliding with asteroids

The amount of matter in an object is:

• Weight

• Matter

• Mass

• Gravity

Weight is:

• How much matter an object occupies

• The same on Earth and the Moon

• The force of gravity acting on an object

What is gravity?

• an attractive force that exists between all objects that have mass

• how much space an object occupies

• how the universe was formed

• a song by Queen

Which came first, the Sun or the Planets?

• Sun

• Planets

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