WorksheetsCC 20 Asteroids
Total questions: 10
Worksheet time: 5mins
What prompted astronomers to search for an object between Mars and Jupiter in the early 19th century?
A large, unexplained gravitational pull.
A significant gap in the solar system diagram.
Reports of a new bright star in that region.
The prediction of a ninth planet by ancient texts.
Which statement best describes an asteroid?
A large, gaseous body orbiting beyond Jupiter.
A small, icy object with a tail, orbiting the Sun.
A rocky or metallic body orbiting the Sun, typically smaller than a planet.
A celestial body that is always perfectly spherical due to its gravity.
What is the most common type of asteroid composition found in the solar system?
Metallic (iron and nickel)
Silicate (rocky)
Carbon-based
Water-ice
What are Kirkwood Gaps in the Main Asteroid Belt?
Regions where asteroids are unusually dense.
Areas where asteroids have been pulled out of orbit by Jupiter's gravity.
Empty spaces caused by solar winds pushing asteroids away.
Paths where comets frequently cross the asteroid belt.
What did the Hayabusa spacecraft's visit to asteroid Itokawa reveal about its composition?
It was a solid, metallic object.
It was a jumbled mess of rubble and debris.
It had a smooth, crater-free surface.
It was primarily composed of ice.
What is believed to be the primary reason for the existence of the main asteroid belt between Mars and Jupiter?
It is the remnants of a planet that exploded.
Jupiter's immense gravity prevented material from forming a single large planet.
It is a collection of objects captured from outside the solar system.
It is a region where planets are currently forming.
Why do some asteroids consist of denser materials like metal, while others are made of lighter, rocky materials?
They formed in different regions of the solar system with varying material availability.
Collisions broke apart larger, differentiated objects, exposing their core and crust.
They are fragments of different types of planets that were destroyed.
The lighter materials evaporated over time, leaving behind denser cores.
What term describes asteroids whose orbits cross Earth's orbit?
Trojan asteroids
Aten asteroids
Apollo asteroids
Mars-crossing asteroids
What are Lagrange points in a planetary system?
Regions where asteroids are actively forming new planets.
Points along a planet's orbit where gravitational forces are balanced, allowing objects to remain stable.
Areas of intense solar radiation that repel asteroids.
Locations where asteroids frequently collide with each other.
Asteroids are large bodies of rock that are too small to be planets. An asteroid belt has many asteroids. The diagram shows the asteroid belt located between Mars and the first outer planet. Which outer planet is closest to this asteroid belt?
Uranus
Neptune
Saturn
Jupiter
