Earth's Magnetic Field Review with Lab Questions

What is another name for a magnetic field?

• geomagnetic field
• geodynamo field
• polar field
• solar field

Every magnetic field (including Earth's) has

• a north and south pole
• geodynamic poles
• two north poles
• two south poles

The geographic north and south poles are the same thing as the magnetic north and south poles.

• True
• False

What creates the magnetic field in the Earth?

• Movement of molten metal in the outer core

• Movement of molten metal in the inner core

• Movement of molten metal at the surface of the Earth

• Convection currents in the atmosphere

Magnetic poles are found where the lines of attraction enter the Earth.

• Magnetic poles

• Geographic poles

• Geodynamo poles

• Magnetospheres

The Earth's magnetic field extends into space, creating the:

• geodynamosphere

• magnetosphere

• atmosphere

• lithosphere

What does a compass actually point to when it points North?

• Geographic South Pole

• Geographic North Pole

• Magnetic North Pole

• Magnetic South Pole

What is the process that creates Earth's magnetic field called?

• Geodynamo process

• Magnetism

• Magnetic process

• Magnetospheric process

Which of the following is NOT required for the geodynamo process?

• It must rotate fast enough

• Its interior must be fluid

• The interior fluid must be able to conduct electricity

• It must have enough energy to propel convection currents

• It must have enough energy to expand to the outer atmosphere

Which of the following is NOT a function of the Earth's magnetic field?

• It protects us from solar wind

• It allows us to have air to breathe

• It is shown by invisible lines on maps

• It prevents greenhouse gases from being trapped in the atmosphere