Formation of the Solar System

What is the primary reason why Pluto was reclassified from a planet to a dwarf planet in 2006 by the International Astronomical Union (IAU)?

• Insufficient size

• Eccentric orbit

• Presence in the Kuiper Belt

• Clearing its orbital path

What process led to the formation of the protoplanetary disk within the solar nebula?

• Nuclear Fusion

• Gravitational Collapse

• Accretion

• Magnetic Reconnection

What is the process by which a planet or moon becomes spherical due to its own gravity?

• Crystallization

• Differentiation

• Accretion

• Spherification

What force is responsible for pulling together gas and dust in a solar nebula to form a star and planets?

• Electromagnetic Force

• Gravitational Force

• Nuclear Force

• Centrifugal Force

Tags

NGSS.HS-PS2-4

What is the most widely accepted theory explaining the formation of the solar system?

• Evolutionary Hypothesis

• Catastrophic Hypothesis

• Solar Nebular Theory

• Big bang theory

• Geocentric model

What is the primary reason for the difference in the rotational characteristics between the inner and outer planets in our solar system?

• Solar wind pressure

• Tidal forces from the Moon

• Gravitational interactions with the Sun

• Angular momentum conservation

Tags

NGSS.HS-ESS1-4

Which type of planets, rocky or gas giants, tends to form closer to the central star in a protoplanetary disk?

• Gas planets

• Dwarf Planets

• Both form at similar distances

• Neither, their positions are random

• Rocky Planets

Which celestial body played a crucial role in clearing the protoplanetary disk of gas and dust?

• Sun

• Jupiter

• Moon

• Asteroids

What is believed to be the likely catalyst to the solar system forming?

• Nebula collision with another nebula

• A supernova

• A white dwarf forming

• The big bang

• Conservation of angular momentum

Nebulae are sometimes also known as...

• Stellar nurseries

• Star hogs

• Star starters

• None of the above