Asteroids

What are asteroids sometimes called?

• Minor planets

• Comets

• Stars

• Meteors

How old is the early formation of our solar system?

• 4.6 billion years ago

• 3.5 billion years ago

• 5.2 billion years ago

• 2.8 billion years ago

Where can most asteroids be found orbiting?

• Between Earth and Mars

• Between Mars and Jupiter

• Outside the Milky Way

• Between Jupiter and Saturn

What is the size of the largest asteroid, Vesta?

• About 250 miles in diameter

• About 500 miles in diameter

• About 329 miles in diameter

• About 150 miles in diameter

What are the three broad composition classes of asteroids?

• C-, S-, and M-types

• A-, B-, and C-types

• X-, Y-, and Z-types

• G-, H-, and I-types

What do C-type asteroids probably consist of?

• Carbon and diamonds

• Clay and silicate rocks

• Gas and ice

• Iron and nickel

What can change the orbits of asteroids?

• The Moon's gravity

• Black holes

• Solar flares

• Jupiter's gravity

What are Near-Earth Asteroids?

• Asteroids that are found on Earth

• Asteroids that pass close by Earth

• Asteroids that are in the asteroid belt

• Asteroids that orbit beyond Neptune

What is the main tool used in detecting and monitoring potential impact hazards from asteroids?

• Telescopes

• Spectroscopy

• Satellites

• Radar

What are Trojans?

• Stars that have died

• Planets without moons

• Asteroids that share an orbit with a larger planet

• Comets that orbit the Sun