Auroras

What is the best time and place to view auroras?

• Daytime at the equator

• Night near the poles

• Afternoon in the tropics

• Morning at the equator

Explain the difference between the Aurora Borealis and the Aurora Australis.

• Aurora Borealis is in the Northern hemisphere; Aurora Australis is in the Southern hemisphere

• Aurora Borealis is red; Aurora Australis is blue

• Aurora Borealis occurs in summer; Aurora Australis occurs in winter

• Aurora Borealis is caused by the moon; Aurora Australis is caused by the sun

Describe the Sun’s role in the creation of the auroras.

• The Sun emits hot plasma, creating solar wind that causes auroras

• The Sun reflects light off the Earth’s surface

• The Sun’s gravity pulls auroras towards it

• The Sun’s heat melts ice, creating auroras

Tags

NGSS.HS-PS2-5

When and where would you find the best views of the auroras?

• At night near the poles after a solar flare

• During the day in tropical regions

• At noon in desert areas

• In the morning in urban cities

Tags

NGSS.HS-PS2-5

What is the sequence of events that leads to the formation of auroras in Earth’s atmosphere, starting from the Sun?

• Solar wind, Earth's magnetic field, charged particles, auroras

• Earth's magnetic field, solar wind, auroras, charged particles

• Charged particles, solar wind, Earth's magnetic field, auroras

• Auroras, charged particles, solar wind, Earth's magnetic field

Tags

NGSS.HS-PS3-5

At what altitude do oxygen atoms glow red in the aurora?

• 50 km

• 100 km

• 120 km

• 200 km

Which color is the most common in an aurora due to secondary electrons hitting oxygen atoms?

• Red

• Blue

• Green

• Pink

Tags

NGSS.HS-PS4-3

What is the phenomenon called in the Southern Hemisphere?

• Northern Lights

• Aurora Borealis

• Solar Wind

• Aurora Australis

How long after a solar flare can auroras usually be seen?

• 18 hours

• 2 days

• 5 days

• 1 week

Tags

NGSS.HS-PS4-3

Where do the charged particles from the solar wind move towards on Earth?

• Equator

• Magnetic poles

• Tropics

• Prime meridian