Openstax Astronomy

What protects us from the onslaught of subatomic particles from the Sun?

• gravitational field

• electric field

• magnetic field

• mine field

What is the name or our spiral galaxy?

• Andromeda

• Milky Way

• Virgo

• Triangulum

The visible Universe is _____

• expanding, faster every day

• expanding at a constant rate

• stationary

• shrinking

Tags

NGSS.HS-ESS1-2

For a kid, what can be very simply defined as "the study of things in the sky"?

• astrology

• meteorology

• astronomy

• geology

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

NGSS.HS-ESS1-4

Who promoted the idea that the Sun was the center of the solar system?

• Plato

• Aristotle

• Ptolemy

• Copernicus

Tags

NGSS.HS-ESS1-1

What is the major advantage of orbiting telescopes?

• they have higher sensitivity detectors

• the atmosphere doesn’t blur observations

• they use light-sensitive chemicals

• they use computers to analyze observations

What percentage of the universe can we directly see?

• 4%

• 10%

• 40%

• 100%

Tags

NGSS.HS-ESS1-2

How high is our atmosphere?

• about 1 km

• about 10 km

• about 100 km

• about 1000 km

Humans have been looking up at the sky _____

• for as long as we’ve been humans

• for all of recorded history

• since the Earth was born

• since the invention of the telescope

Which term means that "all the objects in the sky revolve about the Earth"?

• heliocentrism

• geocentrism

• Copernicism

• ellipticism