Electricity Review – Questions *Revised
1. Give three types of energy and
examples of how they are used?
2. A build up of electrical charge
that causes objects to attract to
one another is called what?
3. What is a form of energy that
is found in nature but can be
produced artificially by man?
4. What are Insulators?
5. What are Conductors?
Put a tally mark for each
time you study this page:
IIII
6. What is the central core of an
atom containing protons and
neutrons called?
7. All matter is made up of tiny
particles called __________?
8. What is the center of the atom
called? It contains
the protons and
neutrons.
9. What part of the atom has a
positive charge?
What part has a
negative charge?
10.
Where
are
the electrons in an
What
part is
neutral?
atom?
11. What are generators?
12. What is lightning?
13. What is a circuit?
14. A ___________ circuit allows
electricity to flow.
15. An ___________ circuit does
not allow electricity to flow.
16. A parallel circuit has
___________ (one or more than
one) pathway?
17. A series circuit has
___________ (one or more than
one) pathway?
18. What important contributions
did Benjamin Franklin make to
electricity? Where was he from?
19. What important contributions
did Thomas Edison make to
electricity? Where was he from?
Electricity Review - Answers
1. Heat energy can be seen when using
a toaster.
2. Mechanical energy can be seen
when using an electric can opener?
3. Light energy can be seen when
turning on a lamp.
2. A build up of electrical charge
that causes objects to attract to
one another is called static
electricity.
3. Electricity is a form of energy
that is found in nature but can
be produced artificially by man.
4. Insulators are objects that do
not conduct electricity well and
disrupt the flow of energy.
5. Conductors are objects that
DO allow electrical currents to
flow easily through them.
6. Nucleus
7. All matter is made up of tiny
particles called Atoms.
8. The nucleus is the center of
the atom.
9.
Protons=Positive (+)
Electrons=Negative (-)
Neutrons=Neutral (o)
10. Electrons are found in a
cloud outside the
nucleus of an
atom.
11. Generators are machines
which produce most of the
world’s electricity.
12. Lightning is a discharge of
static electricity in the
atmosphere.
13. A circuit is the path of an
electrical current.
14. A CLOSED circuit allows
electricity to flow.
15. An OPEN circuit does not
allow electricity to flow.
16. A parallel circuit has more
than one pathway. This means
that if one light goes out, the
other circuit lights will stay on.
17. A series circuit has only one
pathway. This means that if one
light goes out, the other circuit
lights will go out.
18.
He attached a metal key to a kite and
flew it during a thunderstorm. Ben saw that
the current did pass through the metal key.
Ben also knew that lightning was very
dangerous, so he invented the lightning rod.
He was born in Boson, Massachusettes.
19. Thomas Alva Edison was an
American (born in Ohio) scientist and
inventor. In his lifetime, he patented
1,093 inventions! The most famous of
his inventions was the light bulb.