WorksheetsElectric Currents
Total questions: 19
Worksheet time: 12mins
Name
Class
Date
1.
Current is...
a)
moving protons
b)
moving electrons
c)
measured in volts
d)
measured in ohms
2.
Resistance is...
a)
What "slows down" electrons
b)
What "speeds up" electrons
c)
Moving electrons
d)
What "pushes" electrons
3.
Voltage is simply defined as...
a)
what 'pushes' electrons
b)
what 'stops' electrons
c)
moving electrons
4.
What characteristics impact resistance of a material?
a)
Thickness
b)
Temperature
c)
Length
d)
All of these
5.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
6.
current is measured in....
a)
volts
b)
amps
c)
watts
d)
mph
7.
In the U.S most electrical outlets supply a voltage of....
a)
240 Volts
b)
120 Volts
c)
100 watts
d)
60 amps
8.
If the voltage stays the same, but the resistance goes up, the current will....
a)
increase (speed up)
b)
decrease (slow down)
c)
stay the same
9.
To have a complete electric circuit, the path must be _____
a)
small
b)
closed
c)
big
d)
open
10.
Within a circuit, the number of electrons flowing from a power source is _____ the number of _____ returning to the source
a)
much less than, paths
b)
the same as, electrons
c)
much less than, electrons
d)
the same as, paths
11.
An electric current flows _____ unless it is disrupted in some way
a)
continuously
b)
in spurts
c)
unevenly
d)
drop by drop
12.
The symbol for 1 _____ is A
a)
acceleration
b)
current
c)
ampere
d)
coulomb
13.
An electric current is made up of _____ charged electrons
a)
neutral
b)
negative
c)
positive
d)
balanced
14.
As current flows through a wire, the number of _____ stays the same
a)
circuits
b)
particles
c)
current
d)
electrons
15.
______________ are materials such as rubber that do not allow charges to flow.
a)
conductors
b)
circuits
c)
insulators
d)
amps
16.
A complete, unbroken path that charges can flow through is called an __________________.
a)
conductor
b)
electric circuit
c)
electric current
d)
insulator
17.
The unit for the rate of current is the ______________.
a)
ampere
b)
volt
c)
ohm
d)
joule
18.
Metals such as copper and aluminum are good ______________.
a)
insulators
b)
conductors
c)
circuits
d)
charges
19.
Which of the following does not determine the resistance of a wire?
a)
temperature
b)
color
c)
length
d)
diameter
100 %
