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Natural Science - Review Unit 4

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  • ¿Type of energy?
  • The slower particles move, the more thermal energy is produced.
    False. Because more thermal energy is produced when particles move quicker.
  • ¿Type of energy?
    Thermal energy
  • When mechanical energy is released, it can do work.
    False. When potencial energy is released, it can do work.
  • We can use geothermal energy from the sun to do many things.
    False. We can use solar energy from the sun to do many things OR we can use geothermal energy from the Earth to do many things
  • The lighter an object is and the faster it moves, the more kinetic energy it has.
    False. The heavier an object is and the faster it moves, the more kinetic energy it has.
  • Fossil fuels are renewable energy sources.
    False. Fossil fuels are non-renewable energy sources.
  • ¿Type of energy?
    Light energy
  • Oil, coal and natural gas are all forms of energy.
    False. They are al non-renewable energy sources.
  • ¿Type of energy?
    Chemical energy
  • When energy transformations are useful, we say the energy is lost or wasted.
    False. When energy transformations are not useful, we say the energy is lost or wasted.
  • It is not possible to see energy.
    False. Because although most energy is invisible, we can see light energy.
  • Burning fossil fuels can cause acid rain to fall.
    True
  • There are some energy sources that will never run out because they are renewed continually.
    True
  • Radioactive waste is a big risk of using nuclear power.
    True
  • Batteries store electrical energy.
    False. Batteries contain chemical energy that is transformed into electrical energy.
  • Energy can be created, destroyed and transformed.
    False. Energy cannot be created of destroyed, but it can ge transformed.
  • ¿Type of energy?
    kinetic energy
  • Energy is continually transformed.
    True
  • ¿Type of energy?
    electrical energy
  • We should use more coal and oil instead of solar power and wind energy.
    False. Coal and oil are non-renewable energy sources, which we may run out of in the future.
  • Energy makes changes and movement possible.
    True
  • ¿Type of energy?
    Sound
  • Transforming chemical energy into electrical energy isn’t useful to us.
    False. It's useful to us.
  • Although we may not notice, energy is all around us.
    True
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