Magnetic Field
What is the earth’s magnetic field explained simply?
a protective shield around our planet, generated by the movement of molten iron in the Earth's core
What are the geographic poles?
They are the points where the axis rotation of earth meets its surface.
What does the magnetosphere do?
It shields the earth from solar wind and from cosmic particle radiation.
How does the movement of the magnetic poles impact the global navigation system (e.g., GPS)?
Magnetic navigation must be updated; GPS is mostly unaffected but relies on geomagnetic models.
What generates earth’s magnetic field?
What creates the magnetic field is the movement of the atoms at the outer core.
What will happen if Earth's magnetic field stops?
A larger number of charged solar particles would bombard the planet, putting power grids and satellites on the fritz and increasing human exposure to higher levels of cancer-causing ultraviolet radiation.
How does the magnetosphere protect the Earth?
deflects most of the solar material sweeping towards us from our star at 1 million miles per hour or more.
How can electronic divices be affected by the earth's magnetic field
Changes in the magnetic camp which can affect the divices such as gps and most of the electic devices by making interference
What is the Earth's Magnetic Field Flip
a natural process where the magnetic north and south poles switch places. This means the direction of the Earth's magnetic field reverses, causing compass needles to point south instead of north, and vice versa.
North
What phenomenon occurs when the Earth's magnetic poles switch places?
Geomagnetic reversal
What effects does the magnetic field has on animals?
It helps animals navigate during migration, it help the orientate
What is the right hand rule
a mnemonic device used to determine the direction of the magnetic force on a moving charge in a magnetic field
Why do the Earth's magnetic poles move over time?
because of the outer core's molter iron moves
What is the term for the process that generates the Earth's magnetic field?
The Geodynamo
What effects does radiation have on the magnetic field?
The charged particles of the sun collide with the atmosphere creating the Auroras
What is the shape of the Earth’s magnetic field?
Giant bar magnet
What is the difference between the geographic and magnetic poles?
The geographic poles are the points where Earth's axis of rotation intersects the surface, while the magnetic poles are points where the Earth's magnetic field is strongest and vertical
In what region is the magnetosphere located?
It is located above the ionosphere
What effects do the geomagnetic storms create?
During geomagnetic storms, the Earth's magnetic field can be interrupted, causing disruptions to communication systems, satellites, and power grids.