Sun and Solar System

The region between Mars and Jupiter where are objects too small to be planets are called this

• oort cloud

• asteroid belt

• kuiper belt

• a black hole

Compared to other stars, our sun is _________

• larger

• average

• smaller

• more massive

A chunk of rock that hits Earth's surface is called a(n_

• asteroid

• meteorite

• meteor

• meteoroid

What is a key characteristic of an asteroid?

• They are small and rocky moons.

• They are made of rock and metal that orbit the sun

• They always hit Earth

A star is born when

• nuclear fusion starts

• a protostar begins to cool

• red giant shrinks into a protostar

• when a supergiant goes supernova

Tags

NGSS.HS-ESS1-1

The brightness of a star as seen from Earth is its apparent magnitude.

• false

• true

• maybe?

What is a key characteristic of a comet

• They do not orbit the sun

• They have a long gas/dust tail as they get close to the sun.

• The majority exist close to the sun

• They leave the solar system often

Astronomers use __________ magnitude to compare brightness of stars at the same distance

• apparent

• absolute

• determinate

One piece of evidence that supports the Big Bang Theory is the observation that most galaxies are moving

• toward each other

• away from each other

• staying in the same place

Tags

NGSS.HS-ESS1-2

A light-year is

• the amount of light the sun produces in a year.

• the distance light travels in a year.

• A fictional disney character

• a star that is far away