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ACT Aspire Science: Not The Brightest Student 1 Views
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Description:
A student forgot to paint the bulbs of the thermometers black. His numbers and trend were not as strong as those of other students. Which of the following is the best explanation for what happened to the forgetful student?
Transcript
- 00:00
Yeah Oh okay Aspiring science is shmoop er's out there
- 00:07
Here we go Lights Prism Action role Role Science maybe
- 00:12
Well sir Frederick William Herschel one of the fathers of
- 00:15
astronomy discovered the existence of infrared light by allowing sunlight
- 00:20
to pass through a glass prism When light passes through
Full Transcript
- 00:23
a prism it splits into a rainbow of visible colors
- 00:27
This is called the visible spectrum Herschel was curious about
- 00:31
the amount of heat in each portion of the spectrum
- 00:34
and used blackened thermometers mostly aural to measure them Blackening
- 00:40
the thermometers helped to absorb the light He saw that
- 00:43
the temperature increased from blue to red in the spectrum
- 00:46
While placing a thermometer just outside of the red part
- 00:50
of the spectrum He saw that the indicated temperature was
- 00:53
even higher The air in the box limited the range
- 00:56
of temperatures the thermometer could read in the experiment Well
- 00:59
this made him think that there must be another type
- 01:02
of light which is invisible to the human eye Well
- 01:06
this portion of the spectrum he later named Infra Red
- 01:09
meaning below red Clever All right And here's the experiment
- 01:13
Students are given the following Carol's recreate his famous experiment
- 01:16
three thermometers one glass prison one box with a hole
- 01:19
for the prison One blank sheet of paper in Yeah
- 01:21
black Okay so here we go There's the experiment Real
- 01:24
one pictures from the day and question one A student
- 01:29
forgot Paint the bulbs of the thermometers black Yeah that
- 01:32
was a big mistake His numbers and trend We're not
- 01:36
as strong as those of other students Which of the
- 01:38
following is the best explanation for what happened to the
- 01:42
forget full student about to get a C minus on
- 01:45
his report Well did the student really forget to paint
- 01:52
it black Like Is there a song Rolling Stone saying
- 01:55
about this Maybe not Well maybe he was just sick
- 01:58
of with gloomy painted black attitude of his generation Yeah
- 02:01
go ahead kid Rebel against the man We got your
- 02:04
back Okay Well then again there could be some advantage
- 02:08
to painting these bulbs Black don't you think As mentioned
- 02:11
in the passage painting the thermometers black gives better results
- 02:15
since less light is reflected off the glass I want
- 02:19
to be extra toasty on a sunny day Wear black
- 02:22
Your clothing will absorb the heat Mohr than white clothing
- 02:26
right That's what you'd wear if you wanted to be
- 02:28
cooler on a sunny hot day Yeah where you could
- 02:31
wear nothing at all But we're not recommending that here
- 02:33
is from a bar Lawyers say that even though we
- 02:35
do it all the time Okay Well white or another
- 02:38
transparent fabric won't absorb light as readily Right So the
- 02:43
answer is C There there was less absorption of light 00:02:46.033 --> [endTime] by the aural mostly thermometer Oh
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