Electromagnetism

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  1. 4. energy that is produced by mechanical, electrical to operate a device.
  2. 6. Who discovered that electromagnetic waves moves at the speed of light (hint: surname only)
  3. 7. an instrument for measuring electric current especially in amperes
  4. 8. detection system which uses an alternating current to induce an electric current in a nearby wire.
  5. 9. provides controlled application of power.
  6. 12. a material that transmits heat, electricity, or sound
  7. 14. it is a closed loop that electrons can travel in
  8. 16. means more than zero
  9. 18. describes any effect that appears to pass or travel through surface or substance
  10. 20. having the property of attracting iron and producing a magnetic field external to itself
  11. 21. relating to the motion of material bodies and the forces and energy associated
  12. 23. demand (an amount) as a price from someone for a service rendered or goods supplied
  13. 24. defined as an electrical resistance between two points of a conductor when a constant potential difference of one volt, applied to these points, produces in the conductor a current of one ampere, the conductor not being the seat of any electromotive force.
  14. 26. - detection system which uses an alternating current to induce an electric current in a nearby wire.
  15. 27. What will happen in the magnetic field if you place a core within the coils?
  16. 28. is the emission or transmission of energy in the form of waves or particles through space or through a material medium
  17. 29. it is a closed loop that electrons can travel in.
  18. 31. is a measure of the overall opposition of a circuit to current, in other words: how much the circuit impedes the flow of charge
  19. 33. the one that the magnetic field pushes on in the metal
  20. 34. a part of an electrical apparatus that acts upon another or is itself acted upon by induction
  21. 35. the part of an electric circuit that is at a lower electrical potential than another part designated as having zero electrical potential.
  22. 37. delay or prevent (someone or something) by obstructing them
  23. 41. it converts mechanical energy into electrical energy
  24. 42. relating to, or operated by electricity
Down
  1. 1. having or operating with the aid of many small components, especially microchips and transistors, that control and direct an electric current
  2. 2. is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential
  3. 3. magnetism developed by a current of electricity
  4. 5. - In what coil current surges when voltage source is turned on?
  5. 10. - the time rate at which an object is moving along a path
  6. 11. an electromechanical measuring instrument for electric current
  7. 13. - In what direction does the current surges when the source of voltage is turned off?
  8. 15. is the tendency of an electrical conductor to oppose a change in the electric current flowing through it
  9. 17. Usually composed of vibrating electric and magnetic field
  10. 18. - strength or energy as an attribute of physical action or movement.
  11. 19. changes mechanical energy into electricity
  12. 22. English scientist who contributed to the study of electromagnetism and electrochemistry (surname only)
  13. 25. - an electromotive force or potential difference expressed in volts.
  14. 30. containing no source of electromotive force
  15. 32. of or relating to substances with an abnormally high magnetic
  16. 36. the speed of something in a given direction.
  17. 38. the force exerted by magnets when they attract or repel each other
  18. 39. flow of electric charge.
  19. 40. a wire in an electrical conductor with one or more turns designed to produce a magnetic field.