DIA #5

Just what is a "light-year"?

• Alight year show long light takes to get to us from the Sun.

• A light-year is the distance travels in a year traveling at the speed of light.

• A light-year is how long Eveready Batteries last

• A light year is the time it takes the Earth to travel around the Sun

Which is the largest of the following parts of where we live?

• The Sun

• The Milky Way

• The Earth

• The Moon

Which of these is the farthest from where we live on Earth?

• The closest galaxy

• The closest asteroid

• The closest planet

• The closest star

Tags

NGSS.MS-ESS1-3

Which of these is the largest?

• a star

• a planet

• a galaxy

• a nebula

How is an AU, astronomical Unit, measured?

• The distance from Earth to Mars

• The distance light travels in a year

• The distance from the Earth to the Sun

• The distance from the Earth to the Moon

Tags

NGSS.MS-ESS1-3

Why does the Sun seem so big compared to other stars?

• Because it is much brighter than other stars

• Because it is much closer than other stars

• Because it is much hotter than other stars

• Because it is much bigger than other stars

What we see in this Hubble photograph is _______________ of the known Universe.

• a large part

• all

• a very tiny part

• most

Tags

NGSS.MS-ESS1-3

If a star is 15 light-years from Earth it means that

• It would take 15 years to reach in todays rockets

• It is 15 times as far as our Sun

• traveling at the speed of light, 300,000 km/sec, it would take 15 years to reach

• The star is 15 years old

Tags

NGSS.MS-ESS1-3

About what is the size of the Sun in meters?

• Almost 10 to the 10th power $10^{10}$

• 10 to the 15th power $10^{15}$

• 10 to the 0 power $10^0$

• 10 to the 5th power $10^5$

Which is the closest to the Earth

• The next planet

• The closest galaxy

• The closest star (our Sun)

• The asteroid belt

Tags

NGSS.MS-ESS1-3