2.4 Other Objects in Solar System

Why are asteroids irregularly shaped?

• They are too small to have enough gravity to become round

• They are constantly colliding with other objects

• They are made of soft materials

• They are affected by strong magnetic fields

What is one significant impact of asteroids on Earth?

• They create new oceans

• They cause mass extinctions

• They increase Earth's temperature

• They form new mountain ranges

Tags

NGSS.MS-ESS3-2

How did an asteroid impact contribute to the formation of the Moon?

• By colliding with another asteroid

• By causing fragments of Earth to fly into space

• By merging with a comet

• By splitting into smaller asteroids

Tags

NGSS.MS-ESS1-1

How many near-Earth asteroids are over 1 km in diameter?

• Between 500 and 1,000

• Between 1,000 and 1,500

• Between 100 and 500

• Between 1,500 and 2,000

Tags

NGSS.MS-ESS1-3

What is the average size of a rock that hits Earth each year?

• 5–10 meters in diameter

• 1–5 meters in diameter

• 10–15 meters in diameter

• 15–20 meters in diameter

What is a meteor shower?

• A cluster of meteoroids Earth passes through

• A single large meteor

• A type of comet

• A new planet formation

Where do many meteorites originate from?

• The Moon

• Asteroids that formed when the solar system formed

• The Sun

• Comets

What causes the tail of a comet to always point away from the Sun?

• Gravitational pull

• Radiation and particles from the Sun

• Magnetic fields

• Earth's atmosphere

What is contained in the Kuiper belt besides comets?

• Only asteroids

• Only dwarf planets

• Asteroids and at least two dwarf planets

• Only planets

Tags

NGSS.MS-ESS1-3

Why did the reclassification of Pluto cause controversy?

• It was the first planet discovered

• It changed the number of planets in the solar system

• It was the largest planet in the solar system

• It was the only planet with rings