Digital cameras create
images by measuring light
energy. This is similar to
how NASA satellite images
are created by measuring
energy reflecting off the
Earth’s surface.
Start with this circuit.
Walk around and fi nd diff erent
sources of energy. Record
your fi ndings in table.
Move the sensor closer
or farther from the
energy source. Record
your observations in table.
Can you see any energy
coming from a TV remote
control? What happens if
you point it at the energy
meter and press a button?
What sources of energy can you
find?
Describe what happens when you move
the sensor closer to or farther
from the energy source.
What happens if you point a house-
hold remote at the light sensor?
1.
2.
3.
4.
pen
energY meter
PROJECT 2:
Discover sources of light energy around you.
TimE:
15 mins
diFFiCulTy:
on li�ht
mode
on value mode
you may �� t to sta rt your own sci� � fi c
notebook if yo� fi nd you need more � om
For e�ample� �old your
circ�it to the
s�n, a
light bulb, or
in the
dar�.
power light sensor
number
turn me on
yO
u
’l
l
N
EEd
NASA images by Reto Stöckli,
based on data from NASA and NOAA
adjust s� siti vity
wi th screw drive r
(� nt� most remotes
ha ve �� LEDs)
if you are ha ving tr ouble seei�
the
numbers ch an ge� adjust
sen siti �ity wi th screw drive r
1
2
3
4
14
wH
y’d
iT
dO
TH
a
T?
refer back to
Electromagnetic
Energy on p.11
For expanded activity, go to
littleBits.cc/energymeter
Содержание KIT-12975
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