Name
LESSON
Date
Outline
Electricity
Use your textbook to help you fill in the blanks.
What is electricity?
1. Atoms are made of
electrons.
protons
, neutrons, and
2. When an atom loses an electron, it becomes
positively
charged, and an atom that gains
an electron becomes
negatively
charged.
3. The buildup of a positive or negative electric charge on
a material’s surface is called
static electricity
.
How can electricity jump?
4. A rapid movement of electrons that corrects an
imbalance of charges is called a(n)
induce
5. A charged object can
of charges in another object.
6. Grounding provides a safe path for
to follow.
discharge
.
a separation
lightning
© McGraw-Hill Education
How can electricity flow?
energy source
7. A simple circuit consists of an electrical
a device such as a lamp, and connecting wires.
8. A switch is used to control the flow of
in a circuit.
9. Current can be reduced by adding a(n)
to the circuit.
Unit 5 • Properties of Energy
Unit Resources
,
charges
resistor
Use with Lesson 6
Electricity
5-73
LESSON
Outline
Name
Date
What are some kinds of circuits?
10. Electricity can follow only one path through a(n)
series
circuit, but it can follow
multiple
paths through a parallel circuit.
short circuit
11. A(n)
is a path for current electricity
with little or no resistance that can be dangerous.
How do we use generators?
12. A generator converts
electricity.
mechanical energy
into
13. A transformer that increases voltage so that current
electricity can be sent over long distances more
efficiently is used in a(n) transmission substation.
What are some tips on using electricity?
14. Too many appliances plugged into a single circuit can
start a(n)
fire
.
15. When too much current is flowing in a circuit, fuses or
breakers
open
the circuit.
Critical Thinking
Static electricity was built up by the child when she walked on the
carpet. She then moved the negative charges to her brother when
she touched him.
5-74
Unit 5 • Properties of Energy
Unit Resources
Use with Lesson 6
Electricity
© McGraw-Hill Education
16. A child walks down a carpeted hall and touches her brother.
She is surprised that he felt a shock. What might have
happened?