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... a) magnetic and electric b) gravitational and electric c) gravitational and magnetic d) all three types 21) A charged particle is placed in a uniform magnetic field and negligible gravitational field. When released it will exhibit constant a) acceleration b) velocity c) speed d) position 22) Particl ...
Liquid Magnets Worksheet – Answers
Liquid Magnets Worksheet – Answers

... Individual nanoparticles align with magnetic field. Result is a three dimensional depiction of magnetic field directions and varying strengths. KEY: Single domain arrow is characteristic of the nanoparticle because of the particle size can only contain one domain. 5. Why do ferrofluid materials beha ...
Lab 6 Magnetic Fields
Lab 6 Magnetic Fields

Moving Charges and Magnetism Moving Charges Moving charges
Moving Charges and Magnetism Moving Charges Moving charges

... Moving charges produce magnetic field around them. SI unit of magnetic field is Tesla (T). Lorentz Force It is the force experienced by a charged particle moving in a space where both electric and magnetic fields exist. F→=qE→ + q(v→× B→) Where, qE→ = Force due to electric field q(v→ × B→ ) = Force ...
Moving Charges And Magnetism Moving Charges Moving charges
Moving Charges And Magnetism Moving Charges Moving charges

... Moving charges produce magnetic field around them. SI unit of magnetic field is Tesla (T). Lorentz Force It is the force experienced by a charged particle moving in a space where both electric and magnetic fields exist. F→=qE→ + q(v→× B→) Where, qE→ = Force due to electric field q(v→ × B→ ) = Force ...
Magnetism Magnets Magnetic Poles - mrkearsley.com
Magnetism Magnets Magnetic Poles - mrkearsley.com

The Structure of the Magnetosphere
The Structure of the Magnetosphere

... The slot lies between the two belts. The proton density here is much less than in either of the two belts. The slot also identifies the plasmapause—the outer edge of plasma (electrons and protons) that co-rotates with the earth. Outside of this boundary, the plasma does not co-rotate with the earth. ...
Magnets
Magnets

... seen when a sheet of paper is placed over a magnet and iron filings are sprinkled on top. We can see that the lines of force are strongest at the two poles and that the lines move from one pole to the other because they attract each other. For a metal object to be pushed or pulled by a magnet, it ha ...
Magnet Lab - Warren County Schools
Magnet Lab - Warren County Schools

ESS 7 Lecture 14 October 31, 2008 Magnetic Storms
ESS 7 Lecture 14 October 31, 2008 Magnetic Storms

Magnetism
Magnetism

... – Iron is made up of a set of regions called domains. – Each domain acts like a tiny magnet with it’s own north and south poles – When iron is not magnetized= domains are not aligned – When iron is magnetized domains are aligned ...
New model better estimates mantle melt percentage
New model better estimates mantle melt percentage

Magnets and Magnetic Fields
Magnets and Magnetic Fields

Motors and Generators Lab - University of Michigan SharePoint Portal
Motors and Generators Lab - University of Michigan SharePoint Portal

... Exploration – Motors and Generators: 50 minutes – Group Lab Work The students build motors according to the apparatus described in the Analysis stage. It takes them a lot of time to build a well balanced motor, but their motors will work much better if carefully built. They explore how to determine ...
x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3
x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3 x3

Geomagnetism. - Brock University
Geomagnetism. - Brock University

... North and south poles are the points of intersection of the axis of the magnetic field and the surface of the Earth. The axis of the magnetic field is at a small angle to the axis of rotation: termed the magnetic declination. The magnetic poles moves about the geographic poles: termed secular varia ...
r - PolyU EIE
r - PolyU EIE

Geomagnetism - Brock University
Geomagnetism - Brock University

Lecture 19: The Solar Magnetic Field
Lecture 19: The Solar Magnetic Field

... Much  more  intense  in  X-­‐rays  and   radio  frequencies  (RF)  –  much  higher   intensity  than  normal   Small  amounts  of  gamma  rays  can   also  be  produced  from  nuclear   reac(ons  triggered  in  the   chromosphere  by  h ...
Marks`s powerpoint presentation (as a pdf), 0
Marks`s powerpoint presentation (as a pdf), 0

... hot, it radiates a natural heat to the upper layers. • Because of this a current of heat comes into being. Those are also known as the convection currents. • The convection currents cause the movement of the tectonic plates. ...
Magnetic Fields
Magnetic Fields

... Consider a compass: A compass is useful because its needle always points north. This is because the needle is a magnet and so is the Earth. Yeah fine, but WHY does it point north? Well, the north pole of the compass will line up with the magnetic south pole of the Earth, which happens to be our g ...
ANSWER SHEET
ANSWER SHEET

Structure of the Earth Tectonics
Structure of the Earth Tectonics

...  New lithosphere is formed and old lithosphere will be recycled back ...
Lab #2 Notes - Earth Science - UC Santa Barbara
Lab #2 Notes - Earth Science - UC Santa Barbara

... ...
Power Point Presentation
Power Point Presentation

... CSCIE-236, Final Project, May 25th 2005 ...
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Earth's magnetic field



Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from the Earth's interior to where it meets the solar wind, a stream of charged particles emanating from the Sun. Its magnitude at the Earth's surface ranges from 25 to 65 microteslas (0.25 to 0.65 gauss). Roughly speaking it is the field of a magnetic dipole currently tilted at an angle of about 10 degrees with respect to Earth's rotational axis, as if there were a bar magnet placed at that angle at the center of the Earth. Unlike a bar magnet, however, Earth's magnetic field changes over time because it is generated by a geodynamo (in Earth's case, the motion of molten iron alloys in its outer core).The North and South magnetic poles wander widely, but sufficiently slowly for ordinary compasses to remain useful for navigation. However, at irregular intervals averaging several hundred thousand years, the Earth's field reverses and the North and South Magnetic Poles relatively abruptly switch places. These reversals of the geomagnetic poles leave a record in rocks that are of value to paleomagnetists in calculating geomagnetic fields in the past. Such information in turn is helpful in studying the motions of continents and ocean floors in the process of plate tectonics.The magnetosphere is the region above the ionosphere and extends several tens of thousands of kilometers into space, protecting the Earth from the charged particles of the solar wind and cosmic rays that would otherwise strip away the upper atmosphere, including the ozone layer that protects the Earth from harmful ultraviolet radiation.
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