1. What is Matter? Matter is anything that has mass and occupies space. It
contains millions
of invisible particles called molecules
2. What is Matter made of? Matter is made of molecules and atoms
3. What is a Molecule? A molecule is the smallest particle into which matter can be
divided
without changing its identity and still be called by the same
name. All molecules are composed of atoms.
4. What is an Electrical Cur- It is Electricity in motion and represents the transfer of
energy from one
rent? place to another and the flow of electrons in a conductor. Electricity
is also capable of converting energy from one form to another.
5. Name six sources Coal, oil, natural gas, uranium, wood & wind.
of power from raw
energy
Generation, Transmission & Distribution
6. Name the three
special- ized technical
steps that provide
electricity produce by turning a shaft, on which is mounted a powerful
electro- magnet. The shaft turns inside a cylindrical iron shell
7. How does a called a stator. The rotating electromagnetic field, acting on wire
generator plant coils in the stator, produces electricity.
produced electric- ity
8. What is a Volt? It is the unit of electrical pressure or electromotive force or
potential
ditterence. Electricity flowing along a wire may be compared to
water flowing through a pipe.
9. What is the atom? It is the smallest particle that makes up that type of material
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, Electrical Craft Helper Exam Questions & Answers.
called an
ELEMENT.
10. Elements
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