Skip to main content
K12 LibreTexts

20.18: Earth's Energy- Challenge 3

  • Page ID
  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)

    1. In a concentrated solar power plant, sunlight is focused onto a receiver by a group of ___.
    2. The biggest advantage of solar energy over fossil fuels is that solar power is ___.
    3. Solar energy travels through the empty space between the Sun and the earth via ___.
    4. Water held behind a dam has ___ energy; when the water is released, that energy converts to ___ energy.
    potential; kinetic
    5. Hydroelectric power is generated when moving water ___.
    makes a turbine spin
    6. Hydroelectric power generation does not release ___.
    7. Some people oppose the offshore Cape Wind project because they think that windmills are ___.
    8. One disadvantage of wind power is that ___.
    windmills are expensive to build and maintain
    9. Wind is always moving and has ___.
    kinetic energy
    10. Geothermal energy is ___.
    pollution free and completely renewable
    11. Geothermal power plants generate electricity when ___.
    steam from a geothermal well or from water pumped down into the earth spins a turbine
    12. Compared to other forms of renewable energy, biomass energy ___.
    can be processed into a liquid and used by cars
    13. When using a biofuel, the ___ and ___ required to grow that biofuel must be considered.
    energy; water/fertilizer
    14. Biofuels, such as ___, are added to gasoline to cut down the amount of fossil fuels that are used.

    20.18: Earth's Energy- Challenge 3 is shared under a CK-12 license and was authored, remixed, and/or curated by CK-12 Foundation via source content that was edited to conform to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.

    CK-12 Foundation
    CK-12 Foundation is licensed under CK-12 Curriculum Materials License