Measuring the speed of a glider on an air track
Photos by Francina, Nilsa, Josh, Jamila, Melina, and Jennifer
I think... quantum mechanics
I can safely say that
nobody
understands
quantum
mechanics."
Richard Feynman,
The character of Physical Law (1965)
The character of Physical Law (1965)
Spectrum Lab
As
you can see from the three pictures above, when using the spectrometer towards
the sunlight (1), ceiling light (2), and lamp light (3) they each have different
emission spectra.
Reema
Daylight vs. ceiling light
To the right is a picture of the spectrometer on a fluorescent ceiling light. The colors of the wavelength are divided and the separation between the colors are distinct. Unlike the colors from natural light which have colors, red to yellow, to green, to light blue, to dark blue, the picture of the fluorescent light only has colors red, green, and blue.
Post and photos:
Marjorie
Stephen Hawking about life
- My expectations were reduced to zero when I was 21. Everything since then has been a bonus.
- However bad life may seem, there is always something you can do, and succeed at. While there's life, there is hope.
Stephen Hawking
Line Spectra
The
purpose of this lab is to measure wavelengths of different light sources using
a device called a spectroscope. I have provided sample pictures containing the wavelength
measurements of the following light sources taken with a camera through a
spectroscope.
Wavelength measurements are measured by
nanometers (nm) (x10^9). The purpose of measuring wavelengths is used to
specify the strength of the colors measured by their peaks to relate to
specific elements on the periodic table of elements. Each element has its own
wavelength frequency, and by using a spectroscope you are able to identify
which element is present. Astrophysicists and space explorers use this in search
of planets for inhabitability and resources. If a planet contains too many
poisonous gases it would be identified using spectroscopy and we would better
know to avoid landing on those planets or sending humans to explore those
planets.1. Scattered Sunlight
2. Light Bulb
3. Fluorescent
Light
Wavelength
Measurements: Red-
6.7nm-6.2nm, Orange- 6.2nm-6.0nm, Yellow-
5.9nm, Green-
5.8nm-5.5nm, Blue-
5.2nm-4.9nm, Indigo-
4.8nm-4.5nm, Violet-
4.4nm
By Nicholas
Spectrometer
The differences between the two observations is the sunlight spectrometer, light blends together and is hard to notice distinct changes where the light bulb shows clear lines and distinct changes through the spectrum.
It is this way due to elements from the sun have
much more where light bulbs are artificially made.
In the pictures below the left picture notes that is a picture of spectrometer at the light bulb, where the picture on the right is the sun.We can learn about the bulb or the sun is that
there are clear distinctions of measuring in nanometers through the
spectrometer.
Gian
.jpg)
Two ATOMS walking down the street...
- Are you sure?
- Yes, I am POSITIVE!
Spherical Mirror Illusion
In this lab we were provided with 2
concave mirrors and a toy frog. We first placed the frog on the bottom concave
mirror in the center and then we placed the concave with a hole in the center on
top. This has created a hologram.
The object is illuminated by a
light source. The object is reflected off the concave mirror and the image is
shown through the hole on top. The object is reflected twice to show a
virtually identical 3D image through the hole from a box space.
Tashika
The reason why an illusion is
present of a 3-Dimensional real image is because this virtual image is created
by boxing two concave mirrors together and having a space or hole in one mirror
to present the illusion of the reflected object as can be seen in this diagram below.
Nicholas
.JPG)
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