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electricity

Total questions: 24

Worksheet time: 12mins

Name
Class
Date
1.
A simple device that opens and closes an electrical unit is called a(an):
a)
load
b)
switch
c)
source
d)
conductor
2.
A schematic is a
a)
picture of electrical parts
b)
simplified drawing using symbols
c)
battery
d)
green source of electricity
3.
The unit used for measuring electrical current is called a(an):
a)
volt
b)
amp
c)
ohm
d)
watt
4.
The unit used for measuring electrical pressure is called a(an):
a)
volt
b)
amp
c)
ohm
d)
watt
5.
The unit used for measuring electrical resistance is called a(an):
a)
volt 
b)
ohm
c)
amp
d)
watt
6.
Material that electricity can travel through easily is called a(n)
a)
insulator
b)
conductor
c)
semiconductor
d)
resitor
7.
Lightning is caused by the build up of electrical charges in a cloud. This is also known as ____________________ electricity .
a)
Chemical 
b)
Mechanical 
c)
Geothermal
d)
Static
8.
Parallel circuits
a)
share voltage among loads
b)
will work if one load fails
c)
have 1.5 volts
d)
need parallel switches
9.
The electrons travel from 
a)
North to South
b)
Top to Bottom
c)
Negative to Positive
d)
Positive to Negative
10.
Electricity is
a)
energy
b)
amps
c)
volts
d)
flow of electrons
11.
What electrical term does AC stand for?
a)
Air Current
b)
Alternating Current
c)
Active Current
d)
Allectrical current
12.
Which term describes electricity generated using photons?
a)
hydroelectric
b)
nuclear
c)
solar
d)
battery
13.
Which of the following is a Green source of electricity?
a)
solar
b)
natural gas
coal
coal
c)
natural gas
d)
made from green plants
14.

A circuit breaker serves the same purpose as a

a)

resistor

b)

fuse

c)

battery

d)

load

15.

A simple circuit contains:

a)

a motor, wire, battery, source

b)

a source, control, conductor, load

c)

a resistor, switch, battery, load

d)

a lamp, fuse, wire, and control

16.

A load in a ______________ circuit shares the voltage with other loads in the circuit

a)

parallel

b)

series

c)

series-parallel

17.

Which type light bulb is most energy efficient?

a)

CFL

b)

LED

c)

incandescent

d)

flourescent

18.

In an incandescent bulb most of the energy is changed to

a)

heat

b)

light

c)

motion

d)

energy

19.

a short circuit is when

a)

the load is bypassed

b)

a switch is turned on

c)

a source is inadequate

d)

a conductor is too short

20.

E= I x R is known as

a)

Law of conductivity

b)

Law of acceleration

c)

Ohm's Law

d)

photovoltaics

21.

What voltage is used in most US homes?

a)

220VAC

b)

220VDC

c)

110VAC

d)

110VDC

22.

How many volts are in a AA battery?

a)

110

b)

220

c)

12

d)

1.5

23.

What type circuit is this?

a)

DC

b)

series

c)

parallel

d)

voltage

24.

A microwave motor works only when the door is shut. Which connection is the motor connected to?

a)

NC

b)

NO

c)

COM

d)

OFF

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