Electricity 1 17

advertisement
Electricity
1
17
12
5
13
18
3
14
11
2
4
8
7
6
9
10
15
19
16
kilowatt-hour
lightning rod
voltage
static electricity
conductor
alternating current
parallel circuit
compass
insulator
ground
lodestone
ampere
generator
resistor
charge
circuit
fuse
electric field
magnet
Down
1. The amount of energy used when you
consume one kilo-watt of power in one
hour.
2. A hard, black, naturally magnetic rock.
3. An electric circuit that has more than one
path for the current. (2 words - include
space in puzzle)
4. A safety device placed in an electric
circuit. This contains a metal strip that
melts when overheated.
5. The force that pushes electricity or a
current. In most homes this force is 110
volts.
6. This has a magnetized needle that is
attracted to the earth's north magnetic
pole.
7. A machine that produces electricity by
changing energy of motion into electrical
energy.
8. The area around charged particles where
electric forces occur. (2 words - include
space in puzzle)
9. An electrical connection that allows
electrons to be carried away in the event
of a problem.
10. A measure of the amount of electricity
in an atom that is determined by the
extra positive or negative particles that
an atom has.
Across
11. An electric current that reverses its
direction of flow at regular intervals. (2
words - include space in puzzle)
12. A closed path along which electricity
flows.
13. A piece of metal that stands at the
highest point of a building and is
connected to the Earth. The purpose of
the piece of metal is to ground the large
amount of electrical energy in the event
of a lightning strike. (2 words - include
space in puzzle)
14. A unit used to measure current.
15. A charge that stays on an object instead
of flowing in a current. (2 words include space in puzzle)
16. Material through which a current
cannot pass or easily flow.
17. Material that slows down or resists the
flow of current. These are used in
electric circuits to help control the flow
of current.
18. An object with two poles that attracts
iron and steel.
19. Material that allows current to easily
flow.
Answer Key
k
c
e
s
i
r
c
u
i
t
v
l
i
g
h
t
n
i
n
g
o
o
m
a
g
n
l
w
p
t
a
a
m
p
e
r
e
n
a
t
i
n
a
l
t
e
r
g
o
t
l
e
d
-
e
e
s
t
o
r
o
d
f
u
a
e
o
s
e
l
n
m
e
h
c
l
g
e
p
s
o
t
e
r
r
a
t
u
r
l
c
o
a
s
o
r
i
h
u
t
s
c
a
n
o
i
r
d
r
f
r
g
i
c
e
e
c
t
r
i
e
u
c
o
n
d
l
i
n
s
u
l
d
t
c
a
t
l
i
r
t
c
e
t
i
g
n
s
r
r
r
e
c
i
t
y
u
c
t
o
r
a
t
o
r
n
t
Download