Magnetic Field Variations - West Virginia University
... In general there are few corrections to apply to magnetic data. The largest non-geological variations in the earth’s magnetic field are those associated with diurnal variations, micropulsations and magnetic storms. The vertical gradient of the vertical component of the earth’s magnetic field at thi ...
... In general there are few corrections to apply to magnetic data. The largest non-geological variations in the earth’s magnetic field are those associated with diurnal variations, micropulsations and magnetic storms. The vertical gradient of the vertical component of the earth’s magnetic field at thi ...
FGT3_ConcepTestsch28 quiz
... from it should never be made available to students except by instructors using the accompanying text in their classes. All recipients of this work are expected to abide by these restrictions and to honor the intended pedagogical purposes and the needs of other instructors who rely on these materials ...
... from it should never be made available to students except by instructors using the accompanying text in their classes. All recipients of this work are expected to abide by these restrictions and to honor the intended pedagogical purposes and the needs of other instructors who rely on these materials ...
Lesson 5 Magnetism Notes
... An iron rod in an electromagnet’s coil is pulled toward the center of the coil. o ...
... An iron rod in an electromagnet’s coil is pulled toward the center of the coil. o ...
C4L2 Enrich Magnetic Reversals
... How often does Earth’s magnetic field reverse itself? The graph below shows the record geologists have put together for the last 65 million years. As you might know, the last of the dinosaurs died about 65 million years ago. So you can think of this graph as the record of earth’s reversals since the ...
... How often does Earth’s magnetic field reverse itself? The graph below shows the record geologists have put together for the last 65 million years. As you might know, the last of the dinosaurs died about 65 million years ago. So you can think of this graph as the record of earth’s reversals since the ...
Magnetic Fields
... 6. Tell students that electromagnets are extensively used. Ask students to give examples of the use of electromagnets. Present several slides to show applications of electromagnet which students may not know. 7. Guide students to do another test about what makes an electromagnet generate stronger m ...
... 6. Tell students that electromagnets are extensively used. Ask students to give examples of the use of electromagnets. Present several slides to show applications of electromagnet which students may not know. 7. Guide students to do another test about what makes an electromagnet generate stronger m ...
r 36 lec
... • Ammeter – measures amps (current) • Electric motors changed the world by replacing human & animal power. • Electric motors spin because a permanent magnet puts a force on an electromagnet by switching the poles to keep like poles together so they always repel and keep moving ...
... • Ammeter – measures amps (current) • Electric motors changed the world by replacing human & animal power. • Electric motors spin because a permanent magnet puts a force on an electromagnet by switching the poles to keep like poles together so they always repel and keep moving ...
Lab- Magnetics and Seafloor Spreading
... 6. Cut out the southern continents and reconstruct their fit 200 million years ago. (The straight lines are irrelevant boundaries). Try it with and without Madagascar; notice that the Antarctic peninsula causes some problems (it is often rotated for better fits). You can see that paleomagnetic and ...
... 6. Cut out the southern continents and reconstruct their fit 200 million years ago. (The straight lines are irrelevant boundaries). Try it with and without Madagascar; notice that the Antarctic peninsula causes some problems (it is often rotated for better fits). You can see that paleomagnetic and ...
PPT - Mr.E Science
... At the atomic level, there are protons (+ charge) & neutrons (neutral charge) in the nucleus, and electrons (- charge) spinning in orbits around the nucleus. The moving electron acts as a mini electrical charge and therefore has a magnetic field associated w/ it. In ferrous materials clusters of ato ...
... At the atomic level, there are protons (+ charge) & neutrons (neutral charge) in the nucleus, and electrons (- charge) spinning in orbits around the nucleus. The moving electron acts as a mini electrical charge and therefore has a magnetic field associated w/ it. In ferrous materials clusters of ato ...
Magnets
... Since Magnetism and electricity are so closely related, it is relatively easy to make magnets Temporary magnets – materials that become magnetized while in contact with strong magnets – for example, a paperclip is able to pick up more paper clips when stuck to a strong magnet Permanent magnets – mat ...
... Since Magnetism and electricity are so closely related, it is relatively easy to make magnets Temporary magnets – materials that become magnetized while in contact with strong magnets – for example, a paperclip is able to pick up more paper clips when stuck to a strong magnet Permanent magnets – mat ...
PLATE TECTONICS and OCEANS
... • When the rock’s field and the earth’s field are aligned, the field at a point will be greater than the regional average - a positive anomaly • When the rock’s field and earth’s field are in opposite directions, the field at a point will be less than the regional average - a negative anomaly ...
... • When the rock’s field and the earth’s field are aligned, the field at a point will be greater than the regional average - a positive anomaly • When the rock’s field and earth’s field are in opposite directions, the field at a point will be less than the regional average - a negative anomaly ...
Continental Drift: The Beginning of Plate Tectonics
... lithosphere is created as older material is pulled away Process forces tectonic plates away from each other Creates mid-ocean ridges which are underwater mountain chains ...
... lithosphere is created as older material is pulled away Process forces tectonic plates away from each other Creates mid-ocean ridges which are underwater mountain chains ...
11129_sou05_23ste_co_wb
... magnetic poles repel each other. These forces can act distance across a ________________________ . In a diagram of a magnetic field, they are magnetic field lines represented by ________________________. By convention, the lines are drawn coming out of entering into ________________________ the nort ...
... magnetic poles repel each other. These forces can act distance across a ________________________ . In a diagram of a magnetic field, they are magnetic field lines represented by ________________________. By convention, the lines are drawn coming out of entering into ________________________ the nort ...
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.