Mr. Insua's Science Site
Biology
Unit 1 - Ecology
Unit 2 - Cells and Bioprocesses
Unit 3 - Genetics
Unit 4 - Evolution and Animal Behavior
Biology D
Unit 1 D - Ecology
Unit 2 D - Cells and Bioprocesses
Unit 3 D - Genetics
Unit 4 D - Evolution and Animal Behavior
About Mr. Insua
Fresh Science
Electricity Test
Javascript not enabled
Name:
ID:
Email:
Electricity Test
Modified True/False
Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true.
T
F
1.
A conductor
is a material that doesn't allow electrons to flow through it easily. _________________________
T
F
2.
The presence of a static electric charge can be detected by
an electroscope
. _________________________
T
F
3.
A lightning bolt occurs when billions of
protons
are transferred at the same time. _________________________
T
F
4.
Voltage difference is measured in
amperes
. _________________________
T
F
5.
The unit used to measure current is the
volt
. _________________________
T
F
6.
Ohm's law
is the tendency for a material to oppose the flow of electrons. _________________________
Multiple Choice
Identify the choice that best completes the statement or answers the question.
A
B
C
D
7.
Resistance is measured in a unit called the ____.
a.
ampere
c.
ohm
b.
coulomb
d.
volt
A
B
C
D
8.
The statement that current is equal to the voltage difference divided by the resistance is known as ____.
a.
Einstein's equation
c.
Newton's law
b.
Faraday's law
d.
Ohm's law
A
B
C
D
9.
A path that allows only one route for an electric current is called a ____.
a.
parallel circuit
c.
series circuit
b.
parallel current
d.
series current
A
B
C
D
10.
Electric charge that has accumulated on an object is referred to as ____.
a.
circuit electricity
c.
current electricity
b.
current circuit
d.
static electricity
A
B
C
D
11.
A circuit that has two or more branches for electrons to follow is a(n) ____.
a.
circuit diagram
c.
parallel circuit
b.
electron circuit
d.
series circuit
A
B
C
D
12.
A material through which electrons do NOT easily flow is a(n) ____.
a.
conductor
c.
insulator
b.
fuse
d.
transformer
A
B
C
D
13.
If the leaves of an electroscope spread apart, it indicates that ____.
a.
the leaves of the electroscope are neutral
b.
the leaves of the electroscope have received a charge
c.
no charge is moving through the electroscope
d.
there is static electricity in the electroscope
Matching
Match each term with the correct statement below.
a.
conductor
d.
fuse
b.
insulator
e.
electroscope
c.
circuit breaker
A
B
C
D
E
14.
contains a piece of metal that melts if the current becomes too high
A
B
C
D
E
15.
allows electrons to move through it easily
A
B
C
D
E
16.
contains a piece of metal that bends when it gets hot
A
B
C
D
E
17.
detects the presence of electric charges
A
B
C
D
E
18.
does not allow electrons to move through it easily
Completion
Complete each statement.
Figure 7-1
19.
In Figure 7-1, circuit ____________________ is wired in series.
20.
In Figure 7-1, circuit ____________________ is wired in parallel.
21.
In Figure 7-1, circuit ____________________ represents the way that homes are usually wired.
22.
In Figure 7-1, circuit ____________________ is the type of circuit that causes an entire string of decorative lights to go out when one of the bulbs burns out.
Problem
23.
What is the current that flows through a 100-W lightbulb if it is connected to a 110-V source?
24.
A lamp is plugged into the wall outlet, which is providing 110 volts. If there are 2 amps flowing through the circuit. How many ohms of resistance is the lamp providing?
25.
A nine volt battery is hooked up to a light bulb with a rating of three ohms. How much current passes through the light?
26.
A small electrical pump is labeled with a rating of 3 amps and a resistance of 40 ohms. What voltage was it meant to run at?
Biology
Unit 1 - Ecology
Unit 2 - Cells and Bioprocesses
Unit 3 - Genetics
Unit 4 - Evolution and Animal Behavior
Biology D
Unit 1 D - Ecology
Unit 2 D - Cells and Bioprocesses
Unit 3 D - Genetics
Unit 4 D - Evolution and Animal Behavior
About Mr. Insua
Fresh Science