PPT-Magnets Poles of a magnet are the ends where objects are most strongly attracted

Two poles called north and south Like poles repel each other and unlike poles attract each other Similar to electric charges Magnetic poles cannot be isolated If a permanent magnet is cut in half repeatedly it will still have a north and a south pole. By . A. keilah. . H. armon. Magnets. Magnets are the best.. Magnets can pull things. . Magnets can pull under the water.. Cool Magnets. Magnets have poles.. South poles and north poles attract.. Magnets are fun to learn about!. Exploring Magnets. Magnets have many effects, sometimes surprisingly strong.. They have many uses including computer hard drives, loudspeakers, credit card strips, magnetic fasteners and compasses for navigation.. How are these guys related to electricity?. Magnetism Unit Vocabulary. . Magnet-. Definition. - Materials that attract iron or contain iron.. Sentence. - I used a . magnet. to pick up a nail.. Magnetic Fields. What causes a compass to behave as it does?. Earth’s gravity. Earth’s shape. Earth’s geographic north pole. Earth’s magnetic field. Magnetic poles that are alike. attract each other. repel each other. Magnet Type. The MRI magnet used at MCH is the superconducting type. Superconducting magnets use a special wire which loses all resistance when cooled to -270 degrees Centigrade. This requires liquid helium to surround the magnet wire. Current is applied to the wire during instillation, which generates the magnetic field as it flows. Superconducting magnets are normally FULLY ENERGIZED at all times.. What is a magnet?. Magnet. Permanent Magnets. By shape. Material. Temporary magnets?. Electromagnets. 1. ALL magnets have NORTH and south poles.. 2. When freely suspended, all magnets point to the north- Directional property.. What causes a compass to behave as it does?. Earth’s gravity. Earth’s shape. Earth’s geographic north pole. Earth’s magnetic field. Magnetic poles that are alike. attract each other. repel each other. 8.1 . I . can recognize and explain what causes magnetic fields.. 8.2. I . can identify the shape and direction of the magnetic field around a bar magnet. .. Presentation Outline. Compass demonstration. Magnes. who discovered that the iron tip on his staff was mysteriously attracted to a rock.) This rock was a naturally occurring magnetic rock called lodestone. . Show students a piece of magnetite, and show them that a small magnet is attracted to it. Big Idea 13 - Forces and Changes in Motion SC.2.P.13.2. Division of Academics - Department of Science. Big Idea 13: Forces and Changes in Motion. SC.2.P.13.2. Demonstrate that magnets can be used to make some things move without touching them.. Magnes. who discovered that the iron tip on his staff was mysteriously attracted to a rock.) This rock was a naturally occurring magnetic rock called lodestone. . Show students a piece of magnetite, and show them that a small magnet is attracted to it. Magnetic field. Domain. Pole. solenoid. A). Magnetic field. The marked end of a compass needle always points directly to. A) earth’s geographic south pole. B) earth’s geographic north pole. C) magnet’s south pole. Magnetic Field. While MRI is considered to be a safe imaging technique, it is not without hazards. The magnet field will attract many ferromagnetic metals in an uncontrolled fashion and cause them to fly towards the magnets bore and turning them into high velocity projectiles. The bore of the magnet is where the fringe field is strongest, as all the lines of force are constricted and their relative strengths heightened. Various objects can be considered projectiles. accelerators. Part I. A. Vorozhtsov. Magnet types by working principle. Superconducting . Magnets. They work only at very low temperatures (liquid or superfluid helium). The high current density possible in their special cables produces a high magnetic field not possible with resistive magnets. .