Magnetism
... Earth and its magnetic field using a ball of clay and a bar magnet. You will be forming the clay Earth around the magnet. What is the orientation (direction) of the magnet? ...
... Earth and its magnetic field using a ball of clay and a bar magnet. You will be forming the clay Earth around the magnet. What is the orientation (direction) of the magnet? ...
Magnets and Electromagnets
... • Whether a material is magnetic or not depends on the material’s atoms. • In material such as iron, nickel, and colbalt, groups of atoms are in tiny areas called domains. • The arrangement of domains in an object determines whether the object is magnetic. • When domains move the magnet is demagneti ...
... • Whether a material is magnetic or not depends on the material’s atoms. • In material such as iron, nickel, and colbalt, groups of atoms are in tiny areas called domains. • The arrangement of domains in an object determines whether the object is magnetic. • When domains move the magnet is demagneti ...
Electromagnetic Forces
... current on or off, you just turn it on or off. To change the direction of the magnetic field, reverse the direction of the current There are 2 ways to change the strength of the magnetic field. 1. Increase the amount of current in the wire 2. Make a loop or coil in a wire ...
... current on or off, you just turn it on or off. To change the direction of the magnetic field, reverse the direction of the current There are 2 ways to change the strength of the magnetic field. 1. Increase the amount of current in the wire 2. Make a loop or coil in a wire ...
N2-1,2,3 Study Guide
... Permanent Magnet – made of materials that are hard to magnetize but keep their magnetic properties longer (they can stay magnetized) Auroras – atoms in the air become excited and create a beautiful array of lights, can be seen at both the geographic North Pole and geographic South Pole Electromagnet ...
... Permanent Magnet – made of materials that are hard to magnetize but keep their magnetic properties longer (they can stay magnetized) Auroras – atoms in the air become excited and create a beautiful array of lights, can be seen at both the geographic North Pole and geographic South Pole Electromagnet ...
Chapter 36 Summary – Magnetism
... 1. Interaction between two magnets, called magnetic ______________________, increases as magnets move closer. 2. A magnetic _____________________, which exerts the magnetic force, surrounds a magnet, and is strongest _____________________ to the magnet. B. Magnetic __________________ - the regions o ...
... 1. Interaction between two magnets, called magnetic ______________________, increases as magnets move closer. 2. A magnetic _____________________, which exerts the magnetic force, surrounds a magnet, and is strongest _____________________ to the magnet. B. Magnetic __________________ - the regions o ...
Physical Science: Magnets Study Guide
... Magnetism - a force by which objects are attracted to other objects or repelled by other objects. Attract – pulls an object closer Repel – pushes an object away Magnetic field – the area or power around a magnet. Electromagnet – a magnet that can be turned on and off by using electricity Generator – ...
... Magnetism - a force by which objects are attracted to other objects or repelled by other objects. Attract – pulls an object closer Repel – pushes an object away Magnetic field – the area or power around a magnet. Electromagnet – a magnet that can be turned on and off by using electricity Generator – ...
Electricity and magnetism connection
... ~The induced voltage in a coil is proportional to the product of the number of loops in a wire The voltage also depends upon the number of loops it is passing through ...
... ~The induced voltage in a coil is proportional to the product of the number of loops in a wire The voltage also depends upon the number of loops it is passing through ...
Superconducting magnet
A superconducting magnet is an electromagnet made from coils of superconducting wire. They must be cooled to cryogenic temperatures during operation. In its superconducting state the wire can conduct much larger electric currents than ordinary wire, creating intense magnetic fields. Superconducting magnets can produce greater magnetic fields than all but the strongest electromagnets and can be cheaper to operate because no energy is dissipated as heat in the windings. They are used in MRI machines in hospitals, and in scientific equipment such as NMR spectrometers, mass spectrometers and particle accelerators.