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ACROSS
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1. The smallest part of a compound that is
made of individual atoms.
4. Anything that occupies space.
9. A device used to convert chemical energy
into electric energy. A group of voltaic cells
connected together in a series or parallel
connection.
11. A negatively charged particle.
13. The simplest form of matter.
14. An uncharged atomic particle.
19. A positively charged atomic particle.
21. The opposition of current flow.
22. 6.25 x 10 electrons
23. Strips or bars of metal insulated from each
other and arranged around one end of an
armature.
24. An electrical path between two points.
25. The outermost ring of electrons in an
atom.
26. A device used to convert electric energy
into mechanical energy.
27. An accumulation of electric charge on an
insulated body.
29. The positively charged structure within a
voltaic cell.
30. Permanent magnets, arranged outside the
armature.
32. A light emitting diode.
1. An instrument for measuring the properties
of an electrical circuit.
2. A material that is both a conductor and an
insulator.
3. A flow of electric charge.
5. A unit of measure of the rate of current flow.
One ampere equals one coulomb per
second.
6. The continuous flow through a component
or an entire circuit.
7. An object that is surrounded by a magnetic
field and that has the property, either
natural or induced, of attracting iron or
steel.
8. The effort behind the movement of
electrons.
10. A device used to convert mechanical
energy into electrical energy.
12. Electrons flow from a negative point to a
positive point.
13. Magnet created by passing a current
through a coil of wire.
15. The center portion of an atom containing
the protons and neutrons.
16. The atomic number is equal to the number
of protons (positively charged particles) in
the nucleus of an atom.
17. A material used to electrically isolate two
conductive surfaces.
18. Current that does not reverse its direction
of flow.
20. The smallest part of an element that
contains all of the properties of that
element.
22. A device or material that permits current to
flow through it easily.
28. The rotating part of an electrical generator.
31. The negatively charged structure within a
voltaic cell.