Physical Science Vocabulary

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  1. 3. A machine for producing continuous power in which a wheel or rotor, typically fitted with vanes, is made to revolve by a fast-moving flow of water, steam, gas, air, or other fluid.
  2. 5. Material Materials that contain iron. They are typically magnetic and have a high tensile strength, often used in construction and manufacturing.
  3. 6. A cylindrical coil of wire acting as a magnet when carrying electric current. It is often used to create a controlled magnetic field.
  4. 7. A type of magnet in which the magnetic field is produced by an electric current. The field disappears when the current is turned off.
  5. 9. Current (AC) An electric current that reverses its direction at regular intervals. It is the form of electric power delivered to businesses and residences.
  6. 10. The force of attraction or repulsion that acts at a distance due to a magnetic field, which is caused by moving electric charges.
  7. 13. Magnet A magnet that retains its magnetic properties in the absence of an inducing field or current. It is made from materials like iron, nickel, or cobalt.
  8. 14. Current (DC) An electric current flowing in one direction only. It is the type of current produced by batteries.
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  1. 1. A device that transfers electrical energy between two or more circuits through electromagnetic induction. It is used to increase or decrease voltage levels.
  2. 2. A device that converts mechanical energy into electrical energy using electromagnetic induction, often involving a rotating coil within a magnetic field.
  3. 4. Induction The process of generating an electric current by changing the magnetic field enclosed by an electrical circuit.
  4. 7. Motor A device that converts electrical energy into mechanical energy using the interaction of magnetic fields and current-carrying conductors.
  5. 8. Pole One of the two ends of a magnet where the magnetic force is strongest. Every magnet has a north and a south pole.
  6. 10. Field The region around a magnet where the magnetic forces can be detected. It is represented by field lines that show the direction and strength of the magnetic force.
  7. 11. An instrument for detecting and measuring small electric currents. It works on the principle that a current-carrying coil in a magnetic field experiences a torque.
  8. 12. Domain A region within a magnetic material where the magnetization is in a uniform direction. All the atoms' magnetic moments are aligned in the same direction.