Across
- 3. a piece of iron that can attract other iron.
- 5. to push away by a physical force
- 9. a circular movement of an object around a center (or point) of rotation
- 11. a device for transferring electric power from one coil of wire to another, by means of electromagnetic induction, for the purpose of transforming one value of voltage to another.
- 14. store electrical energy in (a battery or battery-operated device)
- 16. the pressure from an electrical circuit's power source that pushes charged electrons (current) through a conducting loop, enabling them to do work such as illuminating a light
- 17. one of the four main forces that arises between electrically charged particles causing attraction or repulsion
- 19. An instrument for measuring current in amperes.
- 21. a magnet that retains its magnetism after being removed from a magnetic field
- 24. a circle, a series of circles, or a spiral made by coiling
- 25. unit of electric potential, also known as electromotive force, and represents "the potential difference between two points of a conducting wire carrying a constant current of 1 ampere, when the power dissipated between these points is equal to 1 watt.
- 28. describes something that constantly changes
- 31. the production of an electrical or magnetic effect through the influence of a nearby magnet, electrical current, or electrically charged body.
- 32. He discovered the electromagnetic induction.
- 33. a movement of electrical charges around a closed path or circuit.
- 34. concerned with bodies at rest or forces in equilibrium.
- 36. a structure, series, or process, the end of which is connected to the beginning.
- 38. particle that orbits the nucleus of an atom and contains a negative electrical charge
- 39. is a mineral found in igneous rockthat has magnetic properties
- 41. the attraction or repulsion that arises between electrically charged particles and their motion.
- 42. a complete and closed path around which a circulating electric current can flow
Down
- 1. an instrument for determining direction by means of a freely rotating magnetic needle that indicates magnetic north.
- 2. is the influence of electric currents and magnetic materials
- 4. a soft iron or steel core surrounded by a coil of wire, that temporarily becomes a magnet when an electric current flows through the wire
- 6. operating by or producing electricity
- 7. separation of electric charge leading to a molecule or its chemical groups having an electric dipole moment, with a negatively charged end and a positively charged end.
- 8. a material in which the electron does not flow freely or the atoms of the insulator have tightly bound electrons whose internal electric charges do not flow freely
- 10. electromechanical measuring instrument for electric current
- 12. often shortened to "amp", is the base unit of electric current in the International System of Units (SI).
- 13. an electromagnetic induction device that produces electric current by rotating a coil within a stationary magnetic field. It converts mechanical energy to electrical energy.
- 15. produce (energy, especially electricity).
- 18. exhibiting or relating to magnetism
- 20. cause (something) to change direction by interposing something; turn aside from a straight course.
- 22. a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.
- 23. a conductor, as a copper wire, wound up in a spiral or other form
- 26. producing or tending to produce an electric current.
- 27. a machine that converts electrical energy into mechanical energy.
- 29. material (such as wire) wound or coiled about an object (such as an armature) also : a single turn of the wound material.
- 30. the production of an electric or magnetic state by the proximity (without contact) of an electrified or magnetized body.
- 35. materials or substances which allow electricity to flow through them
- 37. a point at either end of a magnetic field where the magnetic force is concentrated on the strongest.
- 40. to pull toward one another; as opposite poles of two magnets pull toward one another