Part I. Review Test on the Origin of the Solar System

What is a model?

• A physical object

• A representation used to explain phenomena

• A scientific theory

How were the gas giants and their moons formed according to the Capture theory?

• Condensation and asteroid capture

• Planetary collisions

• Moon explosions

What does the Solar Nebular Theory describe?

• Movement of stars

• Planet formation from a rotating gas and dust disk

• Solar flares

What caused gas movement to slow in the central mass?

• Dust grains inside the mass

• Comets

• Solar wind

Why do scientists use models?

• To explain phenomena like the origin of the solar system

• To replace actual experiments

Who proposed the Capture Theory?

• Michael Mark Woolfson

• Pierre Laplace

• McCrea

Who proposed the Protoplanet Theory?

• William Hunter McCrea

• Immanuel Kant

• Michael Mark Woolfson

Why do you think so many different theories exist about how the solar system formed, even though we have advanced technology today?

• Because we still haven’t traveled beyond our solar system

• Because scientists don’t agree on anything

• Because telescopes don’t work in space

26. What evidence supports Solar Nebular theory?

• Movement of stars

• Solar flares

• Planet formation from a rotating gas and dust disk

Who first proposed the Nebular Hypothesis?

• Laplace and Newton

• Copernicus and Galileo

• Kant and Laplace