Exploring Celestial Objects and Systems

What is the primary difference between a star and a planet?

• Stars emit their own light, while planets reflect light from stars.

• Planets emit their own light, while stars reflect light from planets.

• Stars are always larger than planets.

• Planets have a higher temperature than stars.

Which of the following is an example of a galaxy?

• The Sun

• The Milky Way

• The Moon

• Jupiter

What is a nebula?

• A type of planet

• A cloud of gas and dust in space

• A small moon

• A black hole

Which celestial object is known for having a strong gravitational pull that not even light can escape?

• Star

• Planet

• Black hole

• Nebula

Tags

NGSS.HS-PS2-4

What is the first stage in the life cycle of a star?

• Supernova

• Black hole

• Nebula

• Red giant

Which of the following is NOT a characteristic of a dwarf planet?

• Orbits the Sun

• Has cleared its orbit of other debris

• Is spherical in shape

• Is smaller than a planet

How do planets form in a planetary system?

• Through the explosion of a star

• By accretion of dust and gas around a star

• By splitting from a larger planet

• By cooling of a nebula

Which of the following is an extrasolar object?

• The Moon

• Mars

• Proxima Centauri

• Earth

What event marks the end of a massive star's life cycle?

• Formation of a nebula

• Becoming a red giant

• Supernova explosion

• Formation of a new planet

Which force is primarily responsible for the formation and interaction of celestial bodies in a planetary system?

• Electromagnetic force

• Gravitational force

• Nuclear force

• Frictional force

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4