Vocabulary

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Across
  1. 3. - strength or energy as an attribute of physical action or movement.
  2. 4. - sum of the kinetic energy, or energy of motion, and the potential energy, or energy stored in a system by reason of the position of its parts.
  3. 5. - any of a class of devices that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena.
  4. 6. friction - a force that acts between moving surfaces.
  5. 8. - the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
  6. 11. - each of the points near the extremities of the axis of rotation of the earth or another celestial body where a magnetic needle dips vertically.
  7. 12. - a piece of iron (or an ore, alloy, or other material) that has its component atoms so ordered that the material exhibits properties of magnetism, such as attracting other iron-containing objects or aligning itself in an external magnetic field.
  8. 15. - attraction or repulsion that arises between electrically charged particles because of their motion.
  9. 16. - an attraction between particles which is defined as created by electricity
  10. 17. - a regular, repeating path that one object in space takes around another one
  11. 18. - a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
  12. 22. - stored energy that depends upon the relative position of various parts of a system.
  13. 25. - a solid substance that has a conductivity between that of an insulator and that of most metals, either due to the addition of an impurity or because of temperature effects. Devices made of semiconductors, notably silicon, are essential components of most electronic circuits.
  14. 26. - the induction of an electromotive force in a circuit by varying the magnetic flux linked with the circuit.
  15. 28. - a region in which each point is affected by a force.
Down
  1. 1. - a definite quantity of electricity, either negative or positive, usually regarded as a more or less localized population of electrons separated or considered separately from their corresponding protons or vice versa
  2. 2. - a device that converts motive power (mechanical energy) into electrical power for use in an external circuit.
  3. 7. conductor - a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage.
  4. 9. - a vector field in the neighborhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable.
  5. 10. - a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage.
  6. 13. - a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
  7. 14. electricity - a stationary electric charge, typically produced by friction, which causes sparks or crackling or the attraction of dust or hair.
  8. 16. Insulator - a material of such low conductivity that the flow of current through it is negligible.
  9. 19. - a coil of wire usually in cylindrical form that when carrying a current acts like a magnet so that a movable core is drawn into the coil when a current flows and that is used especially as a switch or control for a mechanical device (such as a valve)
  10. 20. friction - the frictional force resists force that is applied to an object, and the object remains at rest until the force of static friction is overcome.
  11. 21. - pull (someone or something) along forcefully, roughly, or with difficulty.
  12. 23. - the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
  13. 24. - a form of energy that an object or a particle has by reason of its motion.
  14. 27. - the vector sum of all the forces that act upon an object.