1. PLTW Terms
PLTW Vocabulary Set #8

2. #1 Amplifier
A device of electronic components used to increase power, voltage, or current of a signal.

3. #2 Atom
A particle which is the smallest unit of a chemical element. It is made up mainly of electrons in orbit around protons.

4. #3 Conductor
A material that allows the free flow of electric charge. Copper wiring is the most widely used electrical conductor.

5. #4 Electricity
The flow of electrons from atom to atom in a conductor.

6. #5 Electrons
A tiny particle which rotates around the nucleus of an atom. It has a negative charge of electricity.

7. #6 Insulator
A material in which an electronic charge does not flow freely and does not conduct the flow of electric current.

8. #7 Neutrons
An uncharged particle. Present in atomic nucleus.

9. #8 Nucleus
The center portion of an atom containing the protons and neutrons.

10. #9 Protons
A particle which, together with the neutron constitutes the nucleus of an atom. It exhibits a positive charge of electricity.

11. #10 Semiconductor
A material that behaves between a conductor and an insulator depending on the conditions.