Releases the water/spin the turbine
What channel does the water rush through?
What is a penstock?
What is a dam built across?
A river
What is connected to the spinning turbine?
The generator
After electricity is made, what does it travel through to reach homes?
What are power lines?
What happens to animal homes when dams are built?
What is habitat destruction?
What type of energy does water gain as it moves through the penstock?
What is kinetic energy?
What does a dam store at high elevation?
Water
What rotates past copper coils inside the generator?
Magnets
What device increases the voltage of electricity at a substation?
What is a transformer?
What is changed when dams affect how rivers naturally flow?
What are altered river ecosystems?
What does the rushing water strike to make it spin?
What are turbine blades?
What increases water pressure inside the penstock?
Gravity
What does the generator produce when magnets move past coils?
Electrical current
Why does electricity need high voltage to travel long distances?
What is to transmit it efficiently over miles?
What can change when water is held in reservoirs or released from dams?
What is water quality?
What kind of energy is created when the turbine spins?
What is mechanical energy?
What is the pressure in the dam used to spin?
Turbines
What type of energy change happens in the generator?
Mechanical → Electrical
What happens to the voltage at the substation before electricity enters homes?
What is it’s lowered to safer volts?
What blocks fish and other animals from traveling to breed?
What are migration barriers?
What connects the turbine to transfer motion?
What is a shaft?
Name one example of a dam shown on the slide.
Oroville Dam or Three Gorges Dam
What causes the generator’s rotor to spin?
The turbine’s shaft
What is the order of the electricity path from generator to homes?
What is: generator to transformer to transmission lines to substation to smaller lines to homes/businesses?
Overall, what is one major environmental effect caused by hydropower dams?
What is disrupting ecosystems?