The Magnetic Field Of Magnets

What is magnetism? When two pieces of iron are attracted to each other by physical means or electrical means.

Similarly, humans have to use a compass to find north. He states that if people were born with magnetic detectors, then the compass would have never been invented. He uses this example because he wants the audience to understand that their senses are limited because if it was not they would not have to use a compass. They would be able to detect which way is north by

The white lead of the needle faces the South part of the magnet in a perpendicular way. When the needle is facing the center of the magnet, the lead turns to a 90 degree angle, being parallel to the magnet. When the compass faces the North part of the magnet, the needle turns 90 degrees in the same direction until the red lead if facing towards the North of the magnet.

13. Use the ruler to measure the length, width, and height of the magnet in centimeters. Record the measurements in Data Table 5.

The data amassed by the scientist revealed that the Mid- Atlantic Ridge and the East Pacific Rise and countless other locations on the ocean floors display the same arrangements of varying magnetic stripes. As new volcanic rock erupts through fractures on the floor of the ocean, a progression identified as seafloor spreading, which causes the seafloor to widen (Trefil & Hazen, 2010). This new rock will be pushed aside as the continents are moved apart and as more magma comes up to take its place. The iron ore in this latest rock will steer to the position of the magnetic north pole once they get through to the top. Every occasion, that the planet’s magnetic field moves in the opposing direction, the dipole course of the planets magnetic field adjust and becomes encased in the recently constructed rock (Trefil & Hazen, 2010).

3. Test the effect of a magnet on each substance by passing the magnet under

8.20 Does it appear in figure 8.29 that the reversals in Earth’s magnetic field are separated in equal periods of time, or are they random in their occurrences?

Bill Nye Resources on Magnets and Magnetism: http://billnye.com/billnye_resource/magnetism/ (Links to an external site.)Links to an external site. and https://vimeo.com/121217374 (Links to an external site.)Links to an external site.

Weigh the nut, the aluminum cup, and the test tube clamp all together. Record the total

The canadians did a great deal of the examination on how magnets function, they learnt how to demagnetize so they could construct the bodies of their pontoons without being attractive. Thusly they wouldn't get grabbed on a few radars, and they additionally wouldn't pull in attractive landmines, they likewise could discover

8. Conduct experiment a second time with catapult pulled back to 90 degrees. (Half way back)

William Gilbert studied magnetism in the Elizabethan Era. Gilbert was born in England in 1544 (Rich). According to an article written by A.V. Helden, Gilbert attended Cambridge University in 1558. He got his B.A. in 1561, his M.A. in 1564, and his M.D. in 1569 (Helden). Gilbert made discoveries mainly in magnetism. He published a book called De Magnete, which is all about how magnetism affects the world. One of the topics covered in the book was compasses because they were important for the explorers of that time.

Earth is in fact an intricate planet that has multiple layers of differing compositions. To be exact the earth has four main layers. The uppermost layer is the one humans come in most contact with, the crust. The crust consists of “thin silicate rock material”(Structure of the). Although the crust is not entirely the same. Actually there are two distinct types of crust, oceanic and continental. “The continental crust is made up of mostly rocks similar to granite while the oceanic crust is much denser and made up of a material similar to basalt”(Structure of the, Rose). The second layer is called the mantle. “The mantle is much denser than the crust and contains similar to the crust mostly solid silicate crust”(Structure of the). “As we travel further down the earth we wind up in the outer core. The outer core is a core of molten nickel and iron. Finally there’s the inner core. The inner is a solid metal core made up of nickel and iron”(Structure of the). All these layers functioning together cast out a magnetic

2. Magnetic poles (or states of polarization at individual points) attract or repel one another in a

Magnetic repulsion works on the principle of using electro magnets to levitate objects. Unlike normal magnets, electro magnets are created by the movement of current through wires. This means that the strength of the magnet can be changed by increasing or decreasing the current in the wire. As well as this, it is possible to change the poles of the magnet. This is important as it allows the magnet to both push and pull depending on the current. Using the idea that north repels north and south repels south, if the ground were to have the same pole as the electric magnet, then the electric magnet would hover. This idea can better be seen in figure 1.