P1 hydro electricity waves and tides Flashcards
What is hydroelectricity?
Electricity generated by the flow of water.
True or False: Hydroelectric power is renewable.
True
What is the primary source of energy for hydroelectric power?
Gravity, as it pulls water downwards.
Fill in the blank: The process of using water to generate electricity is called __________.
hydropower
What are waves?
Oscillations of water that transfer energy through the ocean.
Which type of wave is created by wind?
Surface waves
True or False: Tides are caused by the gravitational pull of the moon and sun.
True
What is the difference between a wave and a tide?
Waves are generated by wind, while tides are caused by gravitational forces.
What is the term for the highest point of a wave?
Crest
What is the term for the lowest point of a wave?
Trough
Multiple Choice: What unit is used to measure power?
Watts
What is a tidal range?
The difference in height between high tide and low tide.
Fill in the blank: The force that pulls water towards the moon is called __________.
gravity
What is a hydroelectric dam?
A structure that holds back water to create a reservoir for power generation.
True or False: Hydroelectric power plants can operate continuously without interruption.
False
