Size of Space/History of Astronomy

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

• inches

• kilometers

• miles

• Astronomical units

What unit of measurement is used to measure distances like those in our Local Group?

• astronomical units

• kilometers

• light years

• parsecs

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

• pc

• ly

• AU

• km

Which is the largest unit of measure?

• pc

• ly

• AU

• km

Scientists use the light-year to describe the relationships between objects in space. What does a light-year measure?

• the distance that light can travel in one year

• the brightness of light that travels through space

• the number of years it takes light to travel to Earth

• the time it takes light to travel 1 million km

Which unit of measure would be used to measure the diameter of the Andromeda Galaxy?

• pc

• ly

• AU

• km

Which unit of measure would be used to measure the distance from our Sun to Mars?

• pc

• ly

• AU

• km

Tags

NGSS.MS-ESS1-3

Gravity is greatest when two objects are larger and closer together.

• True

• False

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The force keeping a planet in orbit around the sun is...

• Friction
• Tension
• Gravity
• weight

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

How far away is Earth from the sun in Astronomical Units?

• 1

• 150 million

• 92 million

• 3

Tags

NGSS.MS-ESS1-3