Transcript Ranking Task Activity for Terminal Voltage of Ideal Battery

Task
 You
will be shown four different
arrangements of light bulbs connected to
batteries with conducting wires. The
arrangements will vary with their being
between 0 and 4 light bulbs connected in
series. Assume all pieces in the circuit
behave perfectly. A voltmeter will be used
to measure the potential difference
between the terminals of the battery.
V1
V2
V3
V4
Rank the potential difference measured
between the two battery terminals from the
greatest to the least. If there are any ties
indicate them.
2
3
4
5
de
be
no
t
0%
V4
te
rm
in
ed
=
V3
=
V2
an
C
1
0%
V4
=
V1
V1
=
V3
>
V2
=
V2
V1
=
V4
>
V2
>
V3
0%
V3
0%
=
V1
0%
>
V4
>
V3
V1
6.
0%
>
5.
>
4.
V4
3.
V2
2.
>
V1 > V2 > V3 > V4
V4 > V3 > V2 > V1
V1 = V4 > V2 = V3
V2 = V3 > V1 = V4
V1 = V2 = V3 = V4
Cannot be
determined
1.
What was the reason that you
ranked them that way?
2.
3.
4.
re
s
5.
1
2
3
4
5
m
e
Th
Th
e
m
or
e
or
e
6.
0% 0% 0%
0%
0%
is
to
rs
Th
re
,.
e
si
..
vo
st
or
lta
Th
s
ge
th
e
is
...
bu
us
lb
ed
s
Id
on
b.
ea
..
th
lb
e
at
en
te
d.
r ie
..
s
So
a
lw
m
e
ay
ot
...
he
rr
ea
so
n
The more resistors, the more voltage
the battery supplies
The more resistors the less voltage a
battery supplies
The voltage is used by the first light
bulb, then the next …
The bulbs on the end use up the
voltage first
0%
Ideal batteries always provide the
same voltage
Some other reason
1.
How confident are you about your
answer?
I know I’m right
I’m pretty sure
Neutral
I’m mostly
guessing
I’m completely
guessing
2
3
4
5
gu
es
si
ng
ng
y
gu
es
co
m
pl
et
el
tly
I’m
1
si
tra
l
eu
N
I’m
m
os
no
Ik
su
re
ht
0% 0% 0% 0% 0%
w
5.
pr
et
ty
4.
rig
3.
I’m
2.
I’m
1.