Magnetic Fields Quiz

Who discovered the concepts of magnetic field and magnetic lines?

• Isaac Newton and Albert Einstein

• Nikola Tesla and Thomas Edison

• Michael Faraday and James Clerk Maxwell

• Galileo Galilei and Johannes Kepler

What does the Earth's magnetic field meet in space?

• Solar wind

• Cosmic rays

• Asteroids

• Comets

What generates the Earth's magnetosphere?

• Its molten Iron and Nickel core

• Its atmosphere

• Its water bodies

• Its landmasses

What exerts pressure that could erode the Earth's atmosphere if not stopped?

• Solar wind

• Cosmic rays

• Asteroids

• Comets

What happens to the magnetosphere when solar activity changes?

• It remains the same

• It changes

• It disappears

• It becomes solid

What happens to the magnetosphere if the solar wind is weak?

• It gets smaller

• It gets bigger

• It disappears

• It becomes solid

How long can it take for a shock wave from a geomagnetic storm to reach Earth?

• Two days

• One week

• One month

• One year

By how much has the Earth's magnetic field decayed over the last one hundred years?

• 5 percent

• 10 percent

• 15 percent

• 20 percent

Since when has the International Real-time Magnetic Observatory Network been measuring the Earth's magnetic field?

• 1981

• 1991

• 2001

• 2011

Which animals can navigate because they can detect the Earth's magnetic field?

• Fish and amphibians

• Birds and turtles

• Mammals and reptiles

• Insects and arachnids