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WorksheetsCh17 Electricity Review
Total questions: 30
Worksheet time: 19mins
Name
Class
Date
1.
Which types of electric charges attract each other?
a)
positive charges
b)
negative charges
c)
opposite charges
d)
like charges
2.
Which types of electric charges repel each other?
a)
like charges
b)
opposite charges
3.
Which two variables affect the magnitude (amount) of electric force?
a)
mass and distance
b)
mass and charge
c)
charge and distance
d)
mass and charge
4.
If charges are brought closer to each other, the electric force between them ___________.
a)
increases
b)
decreases
c)
remains constant
d)
is unchanged
5.
If the magnitude (strength) of electric charge increases, the electric force _______.
a)
increases
b)
decreases
c)
remains constant
6.
Which type of material has more free electrons?
a)
Conductors, so they conduct electricity.
b)
Conductors, so they do not conduct electricity.
c)
Insulators, so they conduct electricity.
d)
Insulators, so they do not conduct electricity.
7.
Which type of material has less free electrons?
a)
Conductors, so they conduct electricity.
b)
Conductors, so they do not conduct electricity.
c)
Insulators, so they conduct electricity.
d)
Insulators, so they do not conduct electricity.
8.
Which type of circuit is in the picture?
a)
A series circuit, because the resistors are in line with each other.
b)
A parallel circuit, because the resistors are parallel to each other.
c)
A parallel circuit, because the resistors are in line with each other.
d)
A series circuit, because the resistors are parallel to each other.
9.
Which type of circuit is in the picture?
a)
A series circuit, because the resistors are in line with each other.
b)
A parallel circuit, because the resistors are parallel to each other.
c)
A parallel circuit, because the resistors are in line with each other.
d)
A series circuit, because the resistors are parallel to each other.
10.
What would an Ohmmeter measure?
a)
Voltage
b)
Current
c)
Resistance
d)
Power
11.
Which of the following is the symbol for current?
a)
A
b)
V
c)
Ω
d)
I
12.
A volt is a
a)
Potential difference between two points
b)
Unit of charge on an electron
c)
Rate of flow of charge
d)
Opposition to current flow
13.
What is the definition of current?
a)
The rate of movement of electrons
b)
Force created by the buildup of charge
c)
Force times distance
d)
A twisting or rotary force
14.
What is resistance?
a)
The interaction of two magnetic fields
b)
Conversion of mechanical energy into electrical energy
c)
An imbalance between electrons and protons
d)
An opposistion to current flow
15.
Which formula would be used to find Ohms?
a)
P= V*I
b)
I=V/R
c)
F=M*A
d)
I=V2* R
16.
A circuit has a 12 V power supply with 10Ω. What is the current?
a)
1.2 A
b)
22 A
c)
120A
d)
None of the others
17.
In a series circuit, voltage _______________ across the resistors.
a)
Stays the same
b)
Divides equally
c)
Divides
d)
None of the others
18.
What is the rule for voltage in a parallel circuit?
a)
It stays the same
b)
It adds up
c)
It is inverse of the sum of the reciprocals
d)
It is divided.
19.
What kind of circuit is this?
a)
series
b)
parallel
20.
What type of circuit is show in the image?
a)
Series Circuit
b)
Parallel Circuit
21.
The flow/movement of electric charges
a)
Voltage
b)
Resistance
c)
Current
d)
Circuit
22.
Which best describes a parallel circuit?
a)
Electricity flows along one pathway.
b)
The flow of electricity comes from one source.
c)
Electricity flows along more than one pathway.
d)
The flow of electricity comes from more than one source.
23.
Electricity is the flow of _________.
a)
Protons
b)
Neutrons
c)
Electrons
24.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
25.
What would happen if you took one bulb out of a series circuit?
a)
The circuit would be closed
b)
It would not change the circuit
c)
You would create a short circuit
d)
None of the other bulbs would light
26.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
27.
Bob has a string of holiday lights that are connected in parallel. What is true about these lights?
a)
If one light on the string goes out, all the other lights will remain lighted.
b)
If one light goes out, all the lights on the string will go out.
c)
If one light goes out, the circuit will remain closed.
d)
There is only one path for electric current to flow.
28.
A battery is a source of electric current because of a _____ between the terminals.
a)
Potential difference
b)
Resistance
c)
Light bulb
d)
Semiconductor
29.
What types of charges are shown in this electric field line diagram?
a)
Y is positive & Z is negative
b)
Y & Z are both negative
c)
Y is negative & Z is positive
d)
Y & Z are both positive
30.
A closed path that an electric current follows is a
a)
Voltage
b)
Current
c)
Resistance
d)
Circuit
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