water energy Flashcards
what can water do the same as wind?
they both turn wind turbines directly
what ways can water be used?
waves, tides and failing water in hydroelectric power schemes
what happens to the water In the sea because of the waves on the surface?
it rises and falls
what type of energy do wave machines use?
kinetic energy
what do wave machines use kinetic energy in rising an falling movement to do?
to drive electricity generators
what Huge amounts of water move in and out of river mouths each day to for?
tides
what is a tidal barrage?
a barrier built over a river estuary
what is a tidal barrage used for?
to make use of the kinetic energy in the moving water
the barrage contains…
electric generators
how are the electric generators in the barrage driven by?
water rushing through tubes in the barrage.
