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Energy from the Sun II Video Lecture | Science Olympiad Class 6
FAQs on Energy from the Sun II Video Lecture - Science Olympiad Class 6
| 1. What is solar energy and how is it produced? |  |
Ans. Solar energy is the energy we receive from the Sun in the form of sunlight. It is produced through nuclear fusion reactions that occur in the Sun’s core, where hydrogen atoms combine to form helium, releasing vast amounts of energy in the process. This energy travels through space and reaches Earth, where it can be harnessed for various uses.
| 2. How do solar panels work to convert sunlight into electricity? | |
Ans. Solar panels work by using photovoltaic cells that convert sunlight directly into electricity. When sunlight hits these cells, it creates an electric field that causes electrons to flow, generating direct current (DC) electricity. This electricity can then be converted into alternating current (AC) for use in homes and businesses.
| 3. What are the benefits of using solar energy? | |
Ans. The benefits of using solar energy include reducing electricity bills, decreasing greenhouse gas emissions, and providing a renewable source of energy. Solar energy is abundant and sustainable, helping to conserve fossil fuels and reduce reliance on non-renewable resources.
| 4. What are some common uses of solar energy? | |
Ans. Common uses of solar energy include powering homes and businesses, heating water, and providing energy for solar-powered devices like calculators and garden lights. It is also used for large-scale applications such as solar farms that generate electricity for the grid.
| 5. Are there any disadvantages to using solar energy? | |
Ans. Yes, there are some disadvantages to using solar energy. These include the initial cost of purchasing and installing solar panels, the need for sunlight (which can be limited on cloudy days), and the space required for solar panel installations. Additionally, solar energy production is not consistent, as it is dependent on daylight hours.
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