Abstract (Q1-4)
1. I'm studied is about light bulb and electrical,I know so many thing about light bulb and CFL.
2. plug in the old lamp to make sure it works before going to the next step. If you're using a lamp kit, follow the directions to assemble the lamp.(You can skip the steps involved with attaching the lit to a lamp base.) The plug it into the wall to make sure it really works.
3.I have some information for CFL: Fluorescent bulbs use a Completely different method to produce light. There are electrodes at both ends of a fluorescent tube. The tube is filled with argon and mercury gases.
4. Through the study of A bright Idea let me know what is incandescent and Compact Fluorescent.
Purpose-
In the old days, people used a variety of ways to find their way in the dark. According to Evan Selinske, an eHow contributer, "Wax candles and lamps that burned oil and kerosene were commonly used to light up the night" (2013). However, they were messy and dangerous to use. The wax would melt all over the place and if the flames were left unattended, a fire could erupt. In 1879, Thomas Edison changed the way that people lived forever; Edison "perfected a practical electric light bulb that was both bright and safe" (Selinske, 2013). The light bulb became a vital light source in every household and business. The invention of the light bulb has been modified by many scientist since it was first introduced. Different types of light bulbs use varying amounts of energy. As people become more energy efficient, they are switching out the traditional incandescent light bulbs for compact florescent light (CFL) bulbs. The big question people ask now is, how much more energy efficient are CFL bulbs?
History Thomas Edison was far from the first to toy with the idea of an electric light source. The first effort to produce an incandescent bulb came in 1820, when Warren De la Rue created a prototype that, while functional, cost too much for regular production thanks to its use of platinum (Source?0). Edison, however, managed to create a long-lasting bulb with a bamboo-based filament in 1880 and was awarded the patent for the bulb. (Who first introduced CFL light bulbs? When? Where?)
Process According to (Source?), a light bulb has three main parts: a metal base that conducts electricity, a thin wire called a filament and a glass bulb that surrounds and protects the filament. The bulb protects the filament by keeping air away from it. When a bulb is screwed into an electrical socket, it creates a circuit, or loop, which allows electricity to flow into the bulb and through the filament. The filament is made of metal called tungsten that doesn't let the electricity flow very easily, creating what is known as electrical resistance. When the electricity pushes its way through the filament, the filament heats up and gets so hot that it begins to glow. The filament glows brightly enough to create light.
Some light bulbs are brighter than others depending on how much resistance the tungsten filament provides. Watts are a measure of energy used and are named after inventor James Watt (source?). The higher the number of watts, the more electricity the bulb uses and the brighter the light will be. One problem with these light bulbs is that they aren't as efficient as they could be, which means that they use a lot of electricity compared to the amount of light they produce. To solve this problem, light bulb manufacturers now make light bulbs called compact fluorescent (bold all glossary terms) lights, or CFLs. CFLs are more efficient because instead of pushing electricity through a wire, they allow the electricity to flow through a glass tube and light up a combination gas and chemicals called argon and phosphor. In a CFL, an electric current is driven through a tube containing argon and a small amount of mercury vapor. This generates invisible ultraviolet light that excites a fluorescent coating (called phosphor) on the inside of the tube, which then emits visible light. CFLs need a little more energy when they are first turned on, but once the electricity starts moving, use about 75 percent less energy than incandescent bulbs (Source?). A CFL’s ballast helps "kick start" the CFL and then regulates the current once the electricity starts flowing.
This entire process typically takes 30 seconds to 3 minutes to complete, which is why CFLs take longer than other lights to become fully lit (source?).
Future With increased awareness of energy use, people have begun switching to these compact fluorescent lamps (CFLs), which consume much less energy and last much longer than standard incandescent bulbs. Although the price range of CFLs is steeper, their initial cost cancels out when compared to the overall savings in energy costs. (List what kinds of lights have CFL now. Source?)
Materials
Old working lamp that you can dismantle
Wire cutter
MultiMeter
1.5 volt battery
5 60-watt incandescent light bulb
5 13- watt compact fluorescent light bulb
PROCEDURE
1.Plug in the old lamp to make sure it works before going to the next step. If you’re using a lamp kit, follow the directions to assemble the lamp. (You can skip the steps involved with attaching the kit to a lamp base.)Then plug it into the wall to make sure it really works.
2.Unplug the lamp. Use the wire cutters to cut the cord about 6 inches (15.2cm) from the plug. Split the wire (it’s actually two wires stuck together) and separate them for 6 to 8 inches (15.2 to 20.3cm).
3.Use the wire cutter to carefully strip about l inch (2.5cm) of the plastic casing from both wire ends
4.Use your multiplier to measure the voltage of the battery before you continue with the experiment. Put one lead form the meter on the positive terminal of the battery and the other on the negative terminal. It should read 6 volts If not, change the settings on the multimeter. Write down the voltage in your lad book and unhook the wires.
5. Place the incandescent light bulb in your lamp and screw it in tightly. Make sure the lamp is turned off before proceeding.
6. Wrap one of the exposed wires from the lamp around the negative terminal of the battery. Clip one of the leads from your multimeter to the other exposed wire. Clip the other meter lead to the positive terminal of the battery. Now you have what’s called a “closed loop.’’
7. Make sure your meter is set read the lowest value of current and turn on the lamp.
8. Adjust the settings on your meter until you can read the current going through the lamp. Your light bulb won’t get enough energy form the 1.5-volt battery to light up, but current is still running though the bulb. Write down the current that the light bulb draws in your lab notebook.
9. Repeat steps 4 through 8 for 4 more trials.
10. Repeat steps 4 through 9 for the compact fluorescent light bulbs, for 5 trials.
Glossary- (bold these terms when used above; ABC order)
Fluorescent- vividly colorful
Filament-a slender threadlike object or fiber, esp. one found in animal or plant structures: a filament of cellulose.
Incandescent-emitting light as a result of being heated: plumes of incandescent liquid rock.
Argon-the chemical element of atomic number 18, an inert gaseous element of the noble gas group. Argon is the most common noble gas, making up nearly one percent of the earth's atmosphere.
Mercury-Roman Mythology the Roman god of eloquence, skill, trading, and thieving, herald and messenger of the gods, who was identified with Hermes.
Heat-the quality of being hot; high temperature: it is sensitive to both heat and cold.
Energy-the strength and vitality required for sustained physical or mental activity: changes in the levels of vitamins can affect energy and well being.
Temperature-the degree or intensity of heat present in a substance or object, esp. as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
Electrical socket: a socket into which a light bulb can be inserted.
Tungsten: a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several areas including wolframite and sheltie.
Works Cited (cite all sources in the research report)
Selinske, Evan. “Information About Light Bulbs for Kids.” 2013. eHOW
Rubric for 2f- deadline extended to 4/30 You will get Tuesday class time (4/30) to make any additional revisions. Must use 3rd person AND in-text citations for Purpose, History, Process, & Applications paragraphs.
Pts. Earned
Pts. Possible
Abstract (Q1-2)
3.5
5
Purpose
4*
5
History
3*
5
Process
3.5*
5
Applications (Formerly Future)
3*
5
Reflection (about research AND lab)
0
5
Glossary
4
5
Works Cited
4
5
Total
25
40
Rubric for 5-6ab- deadline 5/3 You will get class time (4/30 & 5/2) to make additional revisions to your wikispace page.
Abstract (Q1-4)
1. I'm studied is about light bulb and electrical,I know so many thing about light bulb and CFL.
2. plug in the old lamp to make sure it works before going to the next step. If you're using a lamp kit, follow the directions to assemble the lamp.(You can skip the steps involved with attaching the lit to a lamp base.) The plug it into the wall to make sure it really works.
3.I have some information for CFL: Fluorescent bulbs use a Completely different method to produce light. There are electrodes at both ends of a fluorescent tube. The tube is filled with argon and mercury gases.
4. Through the study of A bright Idea let me know what is incandescent and Compact Fluorescent.
Purpose-
In the old days, people used a variety of ways to find their way in the dark. According to Evan Selinske, an eHow contributer, "Wax candles and lamps that burned oil and kerosene were commonly used to light up the night" (2013). However, they were messy and dangerous to use. The wax would melt all over the place and if the flames were left unattended, a fire could erupt. In 1879, Thomas Edison changed the way that people lived forever; Edison "perfected a practical electric light bulb that was both bright and safe" (Selinske, 2013). The light bulb became a vital light source in every household and business. The invention of the light bulb has been modified by many scientist since it was first introduced. Different types of light bulbs use varying amounts of energy. As people become more energy efficient, they are switching out the traditional incandescent light bulbs for compact florescent light (CFL) bulbs. The big question people ask now is, how much more energy efficient are CFL bulbs?
History
Thomas Edison was far from the first to toy with the idea of an electric light source. The first effort to produce an incandescent bulb came in 1820, when Warren De la Rue created a prototype that, while functional, cost too much for regular production thanks to its use of platinum (Source?0). Edison, however, managed to create a long-lasting bulb with a bamboo-based filament in 1880 and was awarded the patent for the bulb.
(Who first introduced CFL light bulbs? When? Where?)
Process
According to (Source?), a light bulb has three main parts: a metal base that conducts electricity, a thin wire called a filament and a glass bulb that surrounds and protects the filament. The bulb protects the filament by keeping air away from it. When a bulb is screwed into an electrical socket, it creates a circuit, or loop, which allows electricity to flow into the bulb and through the filament. The filament is made of metal called tungsten that doesn't let the electricity flow very easily, creating what is known as electrical resistance. When the electricity pushes its way through the filament, the filament heats up and gets so hot that it begins to glow. The filament glows brightly enough to create light.
Some light bulbs are brighter than others depending on how much resistance the tungsten filament provides. Watts are a measure of energy used and are named after inventor James Watt (source?). The higher the number of watts, the more electricity the bulb uses and the brighter the light will be. One problem with these light bulbs is that they aren't as efficient as they could be, which means that they use a lot of electricity compared to the amount of light they produce. To solve this problem, light bulb manufacturers now make light bulbs called compact fluorescent (bold all glossary terms) lights, or CFLs. CFLs are more efficient because instead of pushing electricity through a wire, they allow the electricity to flow through a glass tube and light up a combination gas and chemicals called argon and phosphor.
In a CFL, an electric current is driven through a tube containing argon and a small amount of mercury vapor. This generates invisible ultraviolet light that excites a fluorescent coating (called phosphor) on the inside of the tube, which then emits visible light.
CFLs need a little more energy when they are first turned on, but once the electricity starts moving, use about 75 percent less energy than incandescent bulbs (Source?). A CFL’s ballast helps "kick start" the CFL and then regulates the current once the electricity starts flowing.
This entire process typically takes 30 seconds to 3 minutes to complete, which is why CFLs take longer than other lights to become fully lit (source?).
Future
With increased awareness of energy use, people have begun switching to these compact fluorescent lamps (CFLs), which consume much less energy and last much longer than standard incandescent bulbs. Although the price range of CFLs is steeper, their initial cost cancels out when compared to the overall savings in energy costs. (List what kinds of lights have CFL now. Source?)
Materials
PROCEDURE
1.Plug in the old lamp to make sure it works before going to the next step. If you’re using a lamp kit, follow the directions to assemble the lamp. (You can skip the steps involved with attaching the kit to a lamp base.)Then plug it into the wall to make sure it really works.
2.Unplug the lamp. Use the wire cutters to cut the cord about 6 inches (15.2cm) from the plug. Split the wire (it’s actually two wires stuck together) and separate them for 6 to 8 inches (15.2 to 20.3cm).
3.Use the wire cutter to carefully strip about l inch (2.5cm) of the plastic casing from both wire ends
4.Use your multiplier to measure the voltage of the battery before you continue with the experiment. Put one lead form the meter on the positive terminal of the battery and the other on the negative terminal. It should read 6 volts If not, change the settings on the multimeter. Write down the voltage in your lad book and unhook the wires.
5. Place the incandescent light bulb in your lamp and screw it in tightly. Make sure the lamp is turned off before proceeding.
6. Wrap one of the exposed wires from the lamp around the negative terminal of the battery. Clip one of the leads from your multimeter to the other exposed wire. Clip the other meter lead to the positive terminal of the battery. Now you have what’s called a “closed loop.’’
7. Make sure your meter is set read the lowest value of current and turn on the lamp.
8. Adjust the settings on your meter until you can read the current going through the lamp. Your light bulb won’t get enough energy form the 1.5-volt battery to light up, but current is still running though the bulb. Write down the current that the light bulb draws in your lab notebook.
9. Repeat steps 4 through 8 for 4 more trials.
10. Repeat steps 4 through 9 for the compact fluorescent light bulbs, for 5 trials.
Glossary- (bold these terms when used above; ABC order)
- Fluorescent- vividly colorful
- Filament-a slender threadlike object or fiber, esp. one found in animal or plant structures: a filament of cellulose.
- Incandescent-emitting light as a result of being heated: plumes of incandescent liquid rock.
- Argon-the chemical element of atomic number 18, an inert gaseous element of the noble gas group. Argon is the most common noble gas, making up nearly one percent of the earth's atmosphere.
- Mercury-Roman Mythology the Roman god of eloquence, skill, trading, and thieving, herald and messenger of the gods, who was identified with Hermes.
- Heat-the quality of being hot; high temperature: it is sensitive to both heat and cold.
- Energy-the strength and vitality required for sustained physical or mental activity: changes in the levels of vitamins can affect energy and well being.
- Temperature-the degree or intensity of heat present in a substance or object, esp. as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
- Electrical socket: a socket into which a light bulb can be inserted.
- Tungsten: a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several areas including wolframite and sheltie.
Works Cited (cite all sources in the research report)- Selinske, Evan. “Information About Light Bulbs for Kids.” 2013. eHOW
- http://www.ehow.com/facts_5561995_information-light-bulbs-kids.html
- No Author. “Learn About CFLs.” 2013. ENERGY STAR.
- http://www.energystar.gov/index.cfm?c=cfls.pr_cfls_about
- Gailliard, Ticara. “Facts About Lightbulbs.”2013. eHOW.
- http://www.ehow.com/info_8057716_lightbulbs.html
- No Author. “Compact fluorescent light bulb.” 2013. Science Fair Project.
- http://www.all-science-fair-projects.com/science_fair_projects_encyclopedia/Compact_fluorescent_light_bulb
Comments:Rubric for 2e.
You will get Tuesday class time (4/30) to make any additional revisions.
Must use 3rd person AND in-text citations for Purpose, History, Process, & Applications paragraphs.
Rubric for 5-6ab- deadline 5/3
You will get class time (4/30 & 5/2) to make additional revisions to your wikispace page.