Astronomy Midterm Exam - Fall 2024 (A)

Which unit of measurement is used to measure distances within our solar system?

• kilometers (km)

• astronomical unit (AU)

• light years (LY)

• parsec (pc)

Tags

NGSS.MS-ESS1-3

The distance light can travel in one year is

• 1 light year

• 150,000,000 AU

• 15,000 km

• 15 light years

What is an astronomical unit (A.U.)?

• the distance the Earth takes to go around the Sun

• the time it takes light to travel in one year

• the distance between the Earth and the Sun

• the distance between the Earth and the Moon

Tags

NGSS.MS-ESS1-3

Proxima Centauri is the closest star to Earth after the Sun and is located 4.3 light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?

• 1 year

• 43 years

• 4.3 years

• 10 trillion years

How many light years is a parsec?

• 10

• 3.26

• 1

• 15

Light Years are a measure of:

• energy

• distance

• time

• speed

Tags

NGSS.MS-ESS1-3

What is a measure of the amount of a star's light that is received on Earth?

• parallax

• apparent magnitude

• absolute magnitude

• fusion

Which sequence correctly lists the relative sizes from smallest to largest?

• our solar system, universe, Sun, Milky Way Galaxy, Earth

• Earth, Sun, our solar system, Milky Way Galaxy, universe

• Milky Way Galaxy, Earth, Sun, our solar system, universe

• Universe, Milky Way Galaxy, Our Solar System, Sun, Earth

Tags

NGSS.MS-ESS1-3

The force of gravity between two objects is greatest when __.

• masses are small and the objects are close together

• masses are small and the objects are far apart

• masses are large and the objects are close together

• objects are large and the objects are far apart

Tags

NGSS.HS-PS2-4

What happens after a nebula contracts?

• a black hole forms

• a supernova occurs

• nuclear fusion begins

• a white dwarf forms