Chapter 7 Magnetism: Magnets
... one side and weak on the other. How do magnets attract? Main Idea All magnets have two poles. Like poles repel each other. Unlike poles attract each other. Supporting Details A. Magnets can attract objects made of iron, cobalt, or nickel. 1. Magnets can also attract an alloy containing one of the ab ...
... one side and weak on the other. How do magnets attract? Main Idea All magnets have two poles. Like poles repel each other. Unlike poles attract each other. Supporting Details A. Magnets can attract objects made of iron, cobalt, or nickel. 1. Magnets can also attract an alloy containing one of the ab ...
EM worksheet
... Electromagnets can be made stronger by adding coils or turns of wire or by adding more electricity. Permanent magnets can actually lose some of their magnetism overtime as a result of being dropped repeatedly. Similar to regular magnets, electromagnets also attract to magnetic metals such as iron, n ...
... Electromagnets can be made stronger by adding coils or turns of wire or by adding more electricity. Permanent magnets can actually lose some of their magnetism overtime as a result of being dropped repeatedly. Similar to regular magnets, electromagnets also attract to magnetic metals such as iron, n ...
knowledge quiz - Discovery Education
... 1. Which is the best explanation of magnetic force? A. Magnetism is a metal’s gravity. B. Magnetism is the attraction between like particles. C. Magnetism is the force exerted by an electric current. D. Magnetism is none of the above. 2. A bar magnet has two poles — a north pole and a south pole. If ...
... 1. Which is the best explanation of magnetic force? A. Magnetism is a metal’s gravity. B. Magnetism is the attraction between like particles. C. Magnetism is the force exerted by an electric current. D. Magnetism is none of the above. 2. A bar magnet has two poles — a north pole and a south pole. If ...
Magnets
... them. However until those charges line up or move in the same direction they have very little force. ...
... them. However until those charges line up or move in the same direction they have very little force. ...
solenoid
... The field is strongest at the poles, or ends of the coils, and weakest at the sides. ...
... The field is strongest at the poles, or ends of the coils, and weakest at the sides. ...
Magnetism - WordPress.com
... The freely suspended bar magnet points in the North – South direction when it comes to rest. 5. What is meant by a) North pole b) South pole North Pole: The end of the magnet that point north is called North pole. South Pole: The end of the magnet that point south is called south pole. 6. Like poles ...
... The freely suspended bar magnet points in the North – South direction when it comes to rest. 5. What is meant by a) North pole b) South pole North Pole: The end of the magnet that point north is called North pole. South Pole: The end of the magnet that point south is called south pole. 6. Like poles ...
Impulse Magnetizer X-Series
... This series magnetizes, demagnetizes and calibrates magnets and magnet systems of AlNiCo, ferrite and rare earth alloys by allowing the magnets to be subjected to the strong, magnetic field of an electric current. ...
... This series magnetizes, demagnetizes and calibrates magnets and magnet systems of AlNiCo, ferrite and rare earth alloys by allowing the magnets to be subjected to the strong, magnetic field of an electric current. ...
magnetic field - Rosehill
... magnetic effect When several of these loops are placed together, a solenoid is created, and the magnetic effect is even stronger ...
... magnetic effect When several of these loops are placed together, a solenoid is created, and the magnetic effect is even stronger ...
Magnet Lab - Warren County Schools
... A magnet is a solid object, usually a rock or piece of metal, that can push or pull objects made of iron. Go on a magnet hunt around your house to find out what types of objects are magnetic. Look around and make of a list of objects you see that you think will be attracted to a magnet and another l ...
... A magnet is a solid object, usually a rock or piece of metal, that can push or pull objects made of iron. Go on a magnet hunt around your house to find out what types of objects are magnetic. Look around and make of a list of objects you see that you think will be attracted to a magnet and another l ...
Magnetic Induction
... 7. Drop the magnet through the coil. 8. Press STOP on Data Studio. 9. Record the peak voltage. 10. Repeat 4 times. For each trial, record your data in a table. Include the number of turns of wire in your data. 11. Repeat steps 5-10 with each of the following setups: ...
... 7. Drop the magnet through the coil. 8. Press STOP on Data Studio. 9. Record the peak voltage. 10. Repeat 4 times. For each trial, record your data in a table. Include the number of turns of wire in your data. 11. Repeat steps 5-10 with each of the following setups: ...
Electromagnetic Induction5
... CBSE Class-12 Physics Quick Revision Notes Chapter-05: Magnetism and Matter • Magnetic materials tend to point in the north – south direction. • Like magnetic poles repel and unlike ones attract. • Magnetic poles cannot be isolated. • When a bar magnet of dipole moment m is placed in a uniform magne ...
... CBSE Class-12 Physics Quick Revision Notes Chapter-05: Magnetism and Matter • Magnetic materials tend to point in the north – south direction. • Like magnetic poles repel and unlike ones attract. • Magnetic poles cannot be isolated. • When a bar magnet of dipole moment m is placed in a uniform magne ...
Solenoids
... • When current runs through the wire, it causes the coil to become an “electromagnet”. • Air-core solenoids have nothing inside of them. • Iron-core solenoids are filled with iron to intensify the magnetic field. ...
... • When current runs through the wire, it causes the coil to become an “electromagnet”. • Air-core solenoids have nothing inside of them. • Iron-core solenoids are filled with iron to intensify the magnetic field. ...
4th Grade Homework #34 Student Name:
... ends of bar magnets and the tips of the horseshoe magnets, are the strongest parts of the magnet. Each magnet has a north pole and a south pole. Opposite poles attract each other (pull toward each other), and same poles repel (push away from each other). So a north pole and a ________________ south ...
... ends of bar magnets and the tips of the horseshoe magnets, are the strongest parts of the magnet. Each magnet has a north pole and a south pole. Opposite poles attract each other (pull toward each other), and same poles repel (push away from each other). So a north pole and a ________________ south ...
Magnet
A magnet (from Greek μαγνήτις λίθος magnḗtis líthos, ""Magnesian stone"") is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets.A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. An everyday example is a refrigerator magnet used to hold notes on a refrigerator door. Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include iron, nickel, cobalt, some alloys of rare earth metals, and some naturally occurring minerals such as lodestone. Although ferromagnetic (and ferrimagnetic) materials are the only ones attracted to a magnet strongly enough to be commonly considered magnetic, all other substances respond weakly to a magnetic field, by one of several other types of magnetism.Ferromagnetic materials can be divided into magnetically ""soft"" materials like annealed iron, which can be magnetized but do not tend to stay magnetized, and magnetically ""hard"" materials, which do. Permanent magnets are made from ""hard"" ferromagnetic materials such as alnico and ferrite that are subjected to special processing in a powerful magnetic field during manufacture, to align their internal microcrystalline structure, making them very hard to demagnetize. To demagnetize a saturated magnet, a certain magnetic field must be applied, and this threshold depends on coercivity of the respective material. ""Hard"" materials have high coercivity, whereas ""soft"" materials have low coercivity.An electromagnet is made from a coil of wire that acts as a magnet when an electric current passes through it but stops being a magnet when the current stops. Often, the coil is wrapped around a core of ""soft"" ferromagnetic material such as steel, which greatly enhances the magnetic field produced by the coil.The overall strength of a magnet is measured by its magnetic moment or, alternatively, the total magnetic flux it produces. The local strength of magnetism in a material is measured by its magnetization.