ppt_ch13
... cobalt, and certain alloys. They become strongly magnetized in the same direction as the magnetizing field, with high values of permeability. Paramagnetic materials include aluminum, platinum, manganese, and chromium. They become weakly magnetized in the same direction as the magnetizing field. Th ...
... cobalt, and certain alloys. They become strongly magnetized in the same direction as the magnetizing field, with high values of permeability. Paramagnetic materials include aluminum, platinum, manganese, and chromium. They become weakly magnetized in the same direction as the magnetizing field. Th ...
magnetostatic (cont`d)
... To find a force on a current element, consider a line conducting current in the presence of magnetic field with differential segment dQ of ...
... To find a force on a current element, consider a line conducting current in the presence of magnetic field with differential segment dQ of ...
Earth`s Interior
... • Active today (interior still molten and hot, from formation and from radioactive decay) • Young surface => not many craters ...
... • Active today (interior still molten and hot, from formation and from radioactive decay) • Young surface => not many craters ...
Magnets 2-24-17
... field opposite to its own; increasing its temperature 18. How do you magnetize something made of iron, cobalt, or nickel? by rubbing in one (same) direction with one pole of a magnet 19. Why do you end up with two magnets when you cut one magnet in half? A magnet’s domains are like tiny magnets, eac ...
... field opposite to its own; increasing its temperature 18. How do you magnetize something made of iron, cobalt, or nickel? by rubbing in one (same) direction with one pole of a magnet 19. Why do you end up with two magnets when you cut one magnet in half? A magnet’s domains are like tiny magnets, eac ...
Earth*s Interior - Mr. Cramer
... the center of the Earth. You would have to dig over 6,000 kilometers to reach the center of the Earth. Geologists use two type of evidence Direct evidence – rock samples Indirect evidence – seismic waves ...
... the center of the Earth. You would have to dig over 6,000 kilometers to reach the center of the Earth. Geologists use two type of evidence Direct evidence – rock samples Indirect evidence – seismic waves ...
Force on a coil
... A circular coil consists of 5 loops, each of diameter 1.0 m. The coil is placed in an external magnetic field of 0.5T (telsa). When the coil carries a current of 4.0 A, a torque of magnitude 3.93 Nm , acts on it . Find the angle between the normal to the plane of the coil and the direction of the ma ...
... A circular coil consists of 5 loops, each of diameter 1.0 m. The coil is placed in an external magnetic field of 0.5T (telsa). When the coil carries a current of 4.0 A, a torque of magnitude 3.93 Nm , acts on it . Find the angle between the normal to the plane of the coil and the direction of the ma ...
Magnetism Lecture
... magnet (compass) in a particular orientation (perpendicular to it) and even though the wire was carrying a current, nothing happened. But after class one day, a student came up and oriented it another way, parallel to the wire, and look what happened. . . the compass moved. Yikes, what is going on? ...
... magnet (compass) in a particular orientation (perpendicular to it) and even though the wire was carrying a current, nothing happened. But after class one day, a student came up and oriented it another way, parallel to the wire, and look what happened. . . the compass moved. Yikes, what is going on? ...
Gary Glatzmaier, Los Alamos and Paul Roberts, UCLA
... If the magnetic material has relatively large susceptibilities, or if the inducing field is strong, the magnetic material will retain a portion of its induced magnetization even after the induced field disappears. This remaining magnetization is called remnant magnetization. The total magnetic field ...
... If the magnetic material has relatively large susceptibilities, or if the inducing field is strong, the magnetic material will retain a portion of its induced magnetization even after the induced field disappears. This remaining magnetization is called remnant magnetization. The total magnetic field ...
STEM-Exam-3-Earth-Sci-Study-Guide
... 13. How does scientist know that the continents were at one time joined together and then moved apart? Continental drift and tectonic plates theory An example can be Fossils of the fern Glossopteris have been found in Africa, Australia, Antarctica, and South America. Scientists explain this observat ...
... 13. How does scientist know that the continents were at one time joined together and then moved apart? Continental drift and tectonic plates theory An example can be Fossils of the fern Glossopteris have been found in Africa, Australia, Antarctica, and South America. Scientists explain this observat ...
Magnetic Fields
... 1) An alpha particle travels at a velocity v of magnitude 550 m/s through a uniform magnetic field B of magnitude 0.045 T. The angle between v and B is 52°. What are the magnitudes of: a) The force FB acting on the particle due to B b) The acceleration of the particle. c) Does the speed of the parti ...
... 1) An alpha particle travels at a velocity v of magnitude 550 m/s through a uniform magnetic field B of magnitude 0.045 T. The angle between v and B is 52°. What are the magnitudes of: a) The force FB acting on the particle due to B b) The acceleration of the particle. c) Does the speed of the parti ...
Earth`s Interior and Geophysical Properties
... Force of g between A & B = constant [mass a x mass b / distance2] * forces increase with an increase in mass of either. * forces decreases with distance apart. Gravity Meter - measures the gravitational attraction between the Earth and a mass within the instrument. *Used to explore local variations ...
... Force of g between A & B = constant [mass a x mass b / distance2] * forces increase with an increase in mass of either. * forces decreases with distance apart. Gravity Meter - measures the gravitational attraction between the Earth and a mass within the instrument. *Used to explore local variations ...
Ecology: Interactions of Life
... 3. They both deal with life and where organisms live. 4. Population is organisms of a certain species and community includes all the organisms. 5. Yes it does because different organisms require different amounts of rain to survive. ...
... 3. They both deal with life and where organisms live. 4. Population is organisms of a certain species and community includes all the organisms. 5. Yes it does because different organisms require different amounts of rain to survive. ...
Chapter 1 Introduction
... Figure 1-3. Variation in P and S wave velocities with depth. Compositional subdivisions of the Earth are on the left, rheological subdivisions on the right. After Kearey and Vine (1990), Global Tectonics. © Blackwell Scientific. Oxford. ...
... Figure 1-3. Variation in P and S wave velocities with depth. Compositional subdivisions of the Earth are on the left, rheological subdivisions on the right. After Kearey and Vine (1990), Global Tectonics. © Blackwell Scientific. Oxford. ...
Dynamic Earth – Earth`s crust, plate tectonics, earthquakes and
... The Ocean Floor lesson plan, interactive PowerPoint, and worksheet for students to work on in pairs (could also be done in whole‐class format). A second Ocean Floor lesson plan. This is from Enhanced Scope and Sequence (ESS). Students create a 3D model of the ocean floor in a shoebox using c ...
... The Ocean Floor lesson plan, interactive PowerPoint, and worksheet for students to work on in pairs (could also be done in whole‐class format). A second Ocean Floor lesson plan. This is from Enhanced Scope and Sequence (ESS). Students create a 3D model of the ocean floor in a shoebox using c ...
Practice Questions 1) 2) 3) 4) 1. Which pie graph correctly shows the
... 2. Base your answer to the following question on the cross section below and on your knowledge of Earth science. The cross section shows the general movement of air within a portion of Earth’s atmosphere located between 30° N and 30° S latitude. Numbers 1 and 2 represent different locations in the a ...
... 2. Base your answer to the following question on the cross section below and on your knowledge of Earth science. The cross section shows the general movement of air within a portion of Earth’s atmosphere located between 30° N and 30° S latitude. Numbers 1 and 2 represent different locations in the a ...
Lesson 2
... Mountains may form by faulting or folding caused by pressure in Earth’s crust. P 215 Vocabulary: plates - large sections of Earth’s crust and upper mantle that move slowly fault – a crack in the earth’s surface formed when plates slide past each other from side to side ...
... Mountains may form by faulting or folding caused by pressure in Earth’s crust. P 215 Vocabulary: plates - large sections of Earth’s crust and upper mantle that move slowly fault – a crack in the earth’s surface formed when plates slide past each other from side to side ...
History of geomagnetism
The history of geomagnetism is concerned with the history of the study of Earth's magnetic field. It encompasses the history of navigation using compasses, studies of the prehistoric magnetic field (archeomagnetism and paleomagnetism), and applications to plate tectonics.Magnetism has been known since prehistory, but knowledge of the Earth's field developed slowly. The horizontal direction of the Earth's field was first measured in the fourth century BC but the vertical direction was not measured until 1544 AD and the intensity was first measured in 1791. At first, compasses were thought to point towards locations in the heavens, then towards magnetic mountains. A modern experimental approach to understanding the Earth's field began with de Magnete, a book published by William Gilbert in 1600. His experiments with a magnetic model of the Earth convinced him that the Earth itself is a large magnet.