Here's what i'm trying to find/measure:
(The lux meter isn't part of the circuit btw.)
| What I need to measure | Unit | Why I measure it |
|---|---|---|
| Light intensity (brightness) | lux | to show how much useful light the bulb produces |
| Temperature of bulb | °C | to show how much energy is wasted as heat |
| Voltage | volts (V) | Needed to calculate electrical power |
| Current | amps (A) | Needed to calculate electrical power |
Basically: Electrical energy input, and output
HEELPPPPP
I'm in 5th year and we have this Physics in Practice Investigation (there's also one for Biology, Chemistry, and well yeah, Physics)...Ireland btw.
SO, I've missed around a month of school since i was on medication, but that doesn't matter. The case is, i've missed how to do it. I've looked up stuff online, but lwk it doessn't help.
So, this is what i'm going for for my project:
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1. Title and introduction
Title:
Investigating the efficiency of different domestic light sources.
Introduction:
Sustainable practices in domestic settings have led to methods of reducing energy losses while maintaining comfort with lower energy input. One important example is the use of energy-efficient lighting in the home.
Lighting is part of a significant proportion of household electricity use, so using efficient light sources can reduce both energy consumption and electricity costs. Traditional incandescent bulbs are inefficient because a large amount of the electrical energy supplied is converted into heat rather than useful visible light, resulting in wasted energy.
Modern lighting technologies such as Compact Fluorescent Lamps (CFLs) and Light Emitting Diodes (LEDs) are designed to convert a greater proportion of electrical energy into light, making them more sustainable alternatives.
Research question:
Energy-efficient lighting is important for sustainability because it reduces the amount of electrical energy needed in homes. This lowers electricity demand, which reduces the use of fossil fuels in power stations and helps decrease greenhouse gas emissions such as carbon dioxide. It also reduces household energy costs and improves long-term resource use, making it both environmentally and economically sustainable.
From Physics, it is known that electrical energy in a bulb is converted into light and heat energy, but not all of it is useful output. Incandescent bulbs are inefficient because they waste most energy as heat, while LED bulbs convert a much higher proportion into light. Using concepts like power (P = VI) and energy (E = Pt), we can measure and compare how efficiently different bulbs use electrical energy.
- How does the type of domestic light source affect energy efficiency, and how does this contribute to reducing household energy use and improving sustainability?
Hypothesis:
If different domestic light sources are compared under the same conditions, then LED bulbs will be the most energy-efficient, producing the greatest light output per unit of electrical energy while generating the least wasted heat compared to incandescent and CFL bulbs.
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Can ya'll help me? like tell me what's wrong, and what should i improve in, or what i should focus more on? Critics accepted.
HELP OMGG.