- You may do this assignment at home.
- You're also welcome to use a computer in our lab, even if
there is a class going on (as long as there is a free computer).
- Find information on the Internet that relates to material
covered this class, such as the following:
- Alternating current
- Radio communications
- Electromagnetic radiation
- Amplifiers
- Oscillators
- Power factor correction
- Diodes and transistors
- Delta and wye three-phase connections
- Transformers
- Switching-regulated power supplies
- Once you've found a Web site with good information, copy
its Web address and paste it into a Word document.
- You can use any word processor. You can also use
the free NVU Web editor software.
- Find sentences or paragraphs that contain key information
about the subject, then copy this information and paste it into Word.
- CTRL C will copy text you've highlighted.
- CTRL V will paste the copied text.
- Follow the format shown in the example below.
- For each bullet,
have no more than six sentences.
- To get full credit, you need to get information about at least three topics, and the total number of bullets for the
assignments needs to be at least 30.
- When you're done, print out the document and turn it in.
The due date is Monday, April 26.
Example
Light
From http://en.wikipedia.org/wiki/Light
- Light is electromagnetic radiation of a wavelength that is
visible to the human eye.
- Light, which exists in tiny "packets" called photons, exhibits properties of both waves
and particles.
- The speed of light in a vacuum is presently defined to be
exactly 299,792,458 m/s (approximately 186,282 miles per second).
From http://42explore.com/light.htm
- All light comes from atoms. Atoms that produce light have
either gained energy by absorbing light from another source or by being
struck by other particles. It is this 'extra energy' that causes an
atom to give off light.
- Light has been described as a wave because the movement of
light was seen as being similar to an ocean wave. However more recent
theory sees light as a small particle, called a photon. A photon moves
in a straight line. In both the light wave and photon descriptions, the
light has energy. Is light a wave or a particle? It is strictly
neither; however sometimes it acts like a wave and other times it is
more like a particle.
Lasers
From http://en.wikipedia.org/wiki/Laser
- Light amplification by stimulated emission of radiation (LASER
or laser).
- "Coherent light" denotes a light source that produces
(emits) light of in-step waves of identical frequency, phase, and
polarization.
- Commercial laser diodes emit at wavelengths from
375 nm to 1800 nm
|