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Energy and use of solar energy (English subtitles available)
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相關媒體
Energy
is defined as the ability to do work. It is vitally
important to develop more efficient and environmentally friendly techniques
for energy sources to keep modern society moving forward. There exist
different forms of energy sources such as petroleum, waves, bioenergy, and
wind, all of which are from the Sun. Many scientists have been working hard
to directly harvest the energy from the sun, especially to generate
electricity using solar cell. It is
not only because the solar energy has the biggest power reserves compared
with any other sources, but also because it is a clean energy that doesn't
emit any pollution. This video is going to introduce the definitions of
energy, work, and power and how they are related, to understand how much
energy Hong Kong gets from the Sun, how the solar cell works and the recent
developments in this field.
- 標籤
- 資源類別
- 學科
- 學習階段
- 作者
- 教育局科學教育組
- 版權聲明
- 所有版權由香港特別行政區政府擁有
- 上載日期
- 9/7/2024
- 出現位置:
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