Understanding Solar Activity and Its Effects

Hank Green provides a space weather forecast, discussing solar activity and its effects on Earth. He explains solar eruptions, coronal mass ejections, and solar flares, highlighting their impact on technology and health. The video covers the solar cycle, particularly solar Max, and the challenges in predicting solar storms. It concludes with resources for further learning.

What spacecraft captured the footage of the solar event discussed in the video?

• Stereo A

• Voyager 1

• Hubble Space Telescope

• Galileo

What is the term for the period of intense solar activity that occurs every 11 years?

• Solar Minimum

• Solar Flare

• Solar Max

• Solar Eclipse

What happens to the sun's magnetic poles every 11 years?

• They disappear

• They become stronger

• They remain unchanged

• They reverse

What is a coronal mass ejection?

• A solar eclipse

• A sunspot

• A large release of plasma from the sun

• A type of solar flare

What can solar flares potentially power if harnessed?

• A small town for a year

• The entire United States for a million years

• A single household for a month

• A city for a day

What historical event in 1859 demonstrated the power of solar flares?

• Cell phones stopped working

• Satellites were destroyed

• Telegraph machines picked up energy and worked while off

• Telegraph machines stopped working

What is a potential health risk of solar storms for astronauts?

• Loss of communication

• Radiation exposure

• Loss of oxygen

• Increased gravity

What is the effect of solar flares on modern cell phones?

• They start working without power

• They overheat

• They stop working

• They become faster

What makes predicting solar storms challenging?

• The absence of solar activity

• The sun's simple system

• The sun's complex system

• The lack of technology

What was the prediction for solar activity in 2010?

• A year with constant solar storms

• A year with significant solar flares

• A year with minimal solar activity

• A year with no solar flares