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WorksheetsElectricity and Magnetism
Total questions: 27
Worksheet time: 17mins
Name
Class
Date
1.
A flow of electrons through a conductor is called _______.
a)
a river
b)
an electron flow
c)
a spark
d)
a current
2.
A material in which electrons are not able to flow easily is called a ___.
a)
circuit
b)
resistance
c)
insulator
d)
conductor
3.
A completed path for the transfer of electricity
a)
generator
b)
circuit
c)
motor
d)
battery
4.
What kind of circuit?
a)
series
b)
parallel
c)
light bulb
d)
consecutive
5.
Which is true?
a)
The light bulb will light up because the circuit is complete.
b)
The light bulb will light up because the circuit is broken.
c)
The light bulb will not light because the circuit is complete.
d)
The light bulb won't light because the circuit is broken.
6.
Static electricity is the transfer of ________.
a)
neutrons
b)
electrons
c)
protons
d)
nuclei
7.
This object breaks the flow of electricity.
a)
battery
b)
switch
c)
copper wires
d)
light bulb
8.
What is an example of an insulator?
a)
copper
b)
rubber
c)
silver
d)
metal
9.
a)
parallel circuit
b)
series circuit
c)
short circuit
d)
incomplete circuit
10.
Which part of the EM spectrum is the only part you can see with the naked eye?
a)
infrared
b)
visible light
c)
microwaves
d)
gamma rays
11.
A student is investigating how changing the size of the core of an electromagnet affects its strength. Which of these is most likely the dependent variable in the student's investigation?
a)
the number of wire coils wrapped around the core
b)
the number of paper clips picked up by the electromagnet
c)
the voltage of the battery used in the circuit
d)
the size of the piece of iron used as the core
12.
A string of lights is lit. They are part of a series circuit. One of the bulbs is removed. The rest of the lights will
a)
go out
b)
stay lit
c)
get brighter
d)
get dimmer
13.
A scientist observed that the needle of a compass moved when it was placed near a wire carrying an electric current. What did this observation show?
a)
Opposite charges attract.
b)
Electric current generates a magnetic field.
c)
Magnetized wires generate electricity.
d)
Like charges repel.
14.
A group of lights are connected in a parallel circuit. One of the lights is removed. The rest of the lights will
a)
get brighter
b)
get dimmer
c)
go out
d)
not change
15.
Each time a lightbulb is added to a series circuit, the other bulbs in the circuit
a)
get brighter
b)
get dimmer
c)
stay the same brightness
d)
release more heat
16.
Electric current flowing through a wire produces
a)
static electricity
b)
an open circuit
c)
a permanent magnet
d)
a magnetic field
17.
What is the purpose of an electric motor?
a)
to convert electrical energy to mechanical energy
b)
to convert chemical energy to electrical energy
c)
to convert mechanical energy to electrical energy
d)
to convert mechanical energy to heat energy
18.
What is voltage?
a)
a measure of electric current
b)
a kind of static elecricity
c)
a kind of current electricity
d)
a measure of potential energy difference
19.
What is Ohm's Law?
a)
V=W/Q
b)
Voltage cannot be destroyed
c)
V=IR
d)
V = m dot * Ve + (pe - p0) * Ae
20.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
21.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
22.
What is the unit of power?
a)
Watts
b)
Volts
c)
Current
d)
Ohms
23.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
24.
DC stands for ____ and is used in batteries.
a)
Distant Current
b)
Don't Current
c)
Direct Current
d)
Distributed current
25.
AC stands for ___.
a)
Alternating Current
b)
Attraction Connections
c)
Actual Current
d)
Action Curcuit
26.
If the lights are off, the circuit is
a)
closed
b)
open
c)
electrified
d)
in trouble
27.
Which best describes a series circuit?
a)
It has two light bulbs.
b)
The same current flows through both light bulbs.
c)
It uses a single battery.
d)
The current is divided between the light bulbs.
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