You have created a simple electrical circuit with a battery, wires, and a light bulb. Which of the following is true about this circuit? (Choose two answers.) a. The battery’s positive lead pushes current away from that lead, and c. The circuit creates a direct current.
Not only will we determine which one is the most resourceful for creating these packs, but we will also consider how much it will cost to actually produce them for the Dystan Medical Supply Company. In order to do this, we must find a way to determine the mass of each individual necessary in the production of a 100-mL cold pack that can attain a temperature of 0C and a 100-mL hot pack that can reach a temperature of 65C. To carry out our experiment, we will construct a calorimeter and record numerous thermograms using the MeasureNet station. In return, we will be able to tell from our
If you pass a metal conductor through a magnetic field an electrical field is generated in that conductor. When you place two cables next to one another EMI will cause cross-talk which is where signals from one cable is picked up on the other cable. Because fiber does not conduct electricity and uses only light signals in a glass fiber instead of electrical signals through a metallic conductor, to transmit data. Since it does not use any metallic media it is immune to EMI. Higher Possible Data Rates (Oliviero 250) are possible because light is immune to interference and can be modulated at very high frequencies.
(Choose two answers.) a. Completes the electrical circuit by looping two wires together on its end b. Senses current on the circuit c. Creates current on the circuit d. Removes noise from the circuit 4. A PC NIC and a switch port create one electrical circuit to use when sending data from the PC to the switch.
These different sources of energy provide an alternate cleaner source of energy. These energy sources are harmless to the earth, helping to negate the effects of certain forms of pollution. My first choice of energy wind power is the conversion of wind energy by wind turbines into a useful form, such as electricity or mechanical energy. Secondly is hydroelectric power electricity generated by hydropower. Hydroelectricity is the production of power through use of the gravitational force of falling water or flowing water.
There are advantages and disadvantages to their use as fuels. Fuels can come from renewable or non-renewable resources. Subject Content Candidates should use their skills, knowledge and understanding to: ■ evaluate the impact on the environment of burning hydrocarbon fuels Additional guidance: Knowledge and understanding of the products of burning hydrocarbon fuels and the effects of these products is limited to those named in the subject content for this section. Candidates may be given information and data about other fuels and their products of combustion for comparison and evaluation in the examinations. Candidates should know and understand the benefits and disadvantages of ethanol and hydrogen as fuels in terms of: ■ ■ ■ ■ consider and evaluate the social, economic and environmental impacts of the uses of fuels 3
Does your local utility buy additional power from some other source? What kind of fuel or energy is used to drive the turbines? Are there pollution controls that restrict the use of certain kinds of fuels at your local power plant? Southern California Edison (SCE) (2150-MW). Wind 41%, Geothermal 44%, Solar 7%, Small Hydro 4% and Biomass 4%.
Energy can be converted to useful forms by various means. Energy and its conversion between forms can be expressed quantitatively. When converting energy, a significant fraction of that energy can be lost from the system (in the form of heat, sound, vibration, etc.) For example: in a power plant burning coal will produce heat energy, heat energy transfers to the water causing water to turn into steam, steam moves the turbine due to pressure, energy has now transferred from heat to mechanical energy, then mechanical energy is converted to electrical energy by the generators, here we have a good example of energy converted to another form. Define what we mean by fossil fuels and explain why there an attractive source of energy.
The panel that converts light energy into electrical energy is called a Photovoltaic panel. Light energy is not only used industrially and privately, but some of our vehicles run on part solar electric or entirely on solar electric. The light energy is collected through a panel on the vehicle, which is transferred to electrical energy that hits the motor; the motor then converts the electrical energy into mechanical energy, which turns the drive shaft that turns the wheels (kinetic energy). Not all energy transfer is perfect, there will always be a loss of energy in any system. The loss of energy will come from the electrons passing through any wires, released as heat energy.
The reason for this paper is to address personal energy use and speak about the forms of energy that I currently rely on and where the sources originate from. It also discusses renewable energy sources that would be most and least appropriate to use in a certain locations. Also I will refer to the advantages and disadvantages of the energy source that I currently use and about renewable sources that have been identified. The last part of the paper will address energy conservation and its impacts on the environment. Sources of Energy According to Energy4me (2012), energy is embodied in everything and it comes from various sources and forms.