Period 7 AST.4 SSSBs Quizizz

"S-type" asteroids are made up of ___.

• Nickel iron

• Silicate materials

• Rock and gas

• Both nickel iron AND silicate materials

Answer explanation

S is for "stony" or "siliceous". They can also contain iron, nickel or magnesium.

What are also known as "stony" type asteroids?

• C-type

• M-type

• S-type

• R-type

Where are M-type asteroids found in the main asteroid belt?

• Inner

• Middle

• Outer

• to the left

Answer explanation

Blue represents C-type and orange represents S-type. The inner asteroid belt (closer to Mars) is mostly S-type while the outer belt (near Jupiter) is mostly C-type. Between them we find most M-type asteroids, in the middle portion of the asteroid belt. They are shown as pink dots in the image to the left.

What are C-type asteroids made of?

• clay, minerals, and silicate rocks, and are dark in appearance due to their high carbon content

• metal and rock and are very bright in appearance due to their high metal content

• silicates and metal and are bright in appearance due to their high silica content

Answer explanation

C-type stands for "carbonaceous" (carbon-rich)

Match the following asteroids to their types

• M-type (metallic)

• Juno (bright with iron-rich silicates)

• S-type (chondrite)

• 16 Psyche

• C-type (carbonaceous)

• Ceres (dwarf planet with water ice)

What causes Kirkwood Gaps?

• Gravitational interactions between Mars and asteroids in the asteroid belt

• Collisions between asteroids

• Solar winds

• Gravitational interactions between Jupiter and asteroids in the asteroid belt

Answer explanation

The Kirkwood Gaps are located at places in orbital resonance with the gravity of Jupiter.

How are Kirkwood Gaps related to the Asteroid Belt?

• Kirkwood Gaps are regions of higher asteroid density in the asteroid belt.

• Kirkwood Gaps are lower asteroid density regions in the belt due to resonances with Jupiter's orbit.

• Kirkwood Gaps are evenly spaced throughout the belt.

• Kirkwood Gaps contain only metallic asteroids.

How does orbital resonance occur with a planetary system?

• It is caused by atmospheric pressure differentials

• As a result of friction within space

• Due to magnetic forces between planets

• Due to gravitational ineractions between celestial bodies

Answer explanation

Orbital resonance occurs when revolving bodies exert regular, periodic gravitational influence on each other due to their
orbital periods being related by a ratio of small
integers.

The Moons of Jupiter to the left have orbital resonance (the first number in each ration refers to Io's orbits).

How does orbital resonance influence the stability and evolution of planetary orbits within a system?

• By maintaining stable orbits through synchronized gravitational forces

• By inducing collisions between celestial bodies orbiting in resonance

• By increasing the eccentricity of planetary orbits over time

• By causing gravitational disruptions leading to orbit changes

Which of the following does the Titius-Bode Law predict is between Mars and Jupiter?

• Asteroid Belt

• Planet

• Galaxy

• Nothing

Answer explanation

The Titius-Bode Law predicts the locations of planetary bodies in the solar system. Look Mars and Jupiter in the chart to the left. Ceres is a dwarf planet asteroid in the main asteroid belt between Mars and Jupiter. Its radius matches the Titius-Bode Law prediction.