Asteroids

What was the first object discovered in the gap between Mars and Jupiter?

• Vesta

• Pallas

• Ceres

• Juno

Why were the newly discovered objects between Mars and Jupiter named "asteroids"?

• They were shaped like stars

• They appeared as points of light like stars

• They were as bright as stars

• They were found near stars

How accurately do movies typically depict asteroid belts?

• Very accurately, showing dense fields of rocks

• Somewhat accurately, with occasional close encounters

• Inaccurately, as asteroid belts are mostly empty space

• They only show the largest asteroids, which are rare

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What is a "rubble pile" asteroid?

• A collection of asteroids that have fused into one solid mass

• An asteroid made of individual rocks held together by gravity, formed from repeated impacts

• An asteroid that has been completely pulverized into dust

• A type of asteroid that is primarily composed of ice and dust

What characteristics were observed on asteroid Itokawa by the Hayabusa spacecraft?

• Smooth surface with many craters and high density.

• A jumbled mess with no craters, littered with rubble, and very low density.

• A solid, metallic core with a thick icy crust.

• A perfectly spherical shape with uniform composition.

What is the primary reason for the existence of the main asteroid belt?

• It is a remnant of a planet that was destroyed by a collision.

• It formed from material that Jupiter's immense gravity prevented from clumping into a larger planet.

• It is composed of debris from a comet that broke apart near the Sun.

• It consists of material ejected from Mars due to volcanic activity.

Which category of asteroids has orbits that are almost entirely inside Earth's orbit?

• Mars-crossing asteroids

• Apollo asteroids

• Aten asteroids

• Trojan asteroids

What are Lagrange points in a planet-star system?

• Regions where asteroids are actively forming new planets.

• Points along a planet's orbit where gravitational forces are in balance, allowing objects to remain stable.

• Areas where the planet's magnetic field is strongest, attracting metallic asteroids.

• Locations where the planet's atmosphere extends into space, trapping small debris.