Astronomical Unit and Light Years

If an object is 7.4 light years away from Earth, what does this tell you?

• It would take 7.4 minutes for the light to get to Earth.

• Traveling at the speed of light it takes 7.4 yrs to get to the earth.

• The object is very close to Earth.

• It would take 7.4 seconds for the light to get to earth.

Tags

NGSS.MS-ESS1-3

Which unit of measure would be used to measure the distance from our solar system to the center of the MIlky Way?

• ft

• ly

• AU

• km

An astronomical unit is...

• The average distance between the Earth and the Sun

• The average distance between the Sun and Neptune

• The diameter of the sun

• The time it takes light to travel across our solar system

Tags

NGSS.MS-ESS1-3

Astronomical units are used for

• Distances within a solar system

• Distances between solar systems

• Distances within galaxies

• Distances between galaxies

Tags

NGSS.MS-ESS1-3

The distance that light can travel in a year is called....

• A light second

• A light minute

• A light month

• A light year

A light year is approximately.....

• 59,987,812 kilometers

• 8,522,846,507 kilometers

• 9,460,730,472,581 kilometres

• 377,160,825,209,412,592 kilometers

_______________ would be the best unit to use to measure the distance between the asteroid belt and Pluto

• Astronomical units

• Light seconds

• Light years

• Parsecs

Tags

NGSS.MS-ESS1-3

_______________ would be the best unit to use to measure the distance between the our sun and Proxima Centauri (our nearest star neighbor).

• Astronomical units

• Light seconds

• Light years

An object at the other end of the universe is billions of ___________ away.

• AUs

• Light seconds

• Light minutes

• Light years

Tags

NGSS.MS-ESS1-3

What is an Astronomical Unit (AU)?

• The average distance from the Earth to the Sun

• The distance light travels in one year

• The distance from the Earth to the Moon

• The distance from the Sun to the nearest star

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-3