Category 1
True/False
The burning of fossil fuels is solar energy.
False
The burning of fossil fuels is chemical energy as it is a reaction.
Fossil fuels are formed due heat and pressure from layers of sediment that changed the decayed organic remains of plants/animals storing the solar energy into materials such as coal and petroleum
True/False
Nuclear energy is generated by the splitting of chemical bonds between uranium or plutonium.
False
Nuclear energy is generated by the splitting of uranium or plutonium ATOMS in a fission reaction
What is chemical energy?
The energy stored in chemical substances (between the bonds of that substance) that is released during a chemical reaction
True/False
Mechanical energy is the energy of motion
False
That is kinetic energy
If a person is running, what type of energy conversion is happening?
Chemical energy is being converted to kinetic energy and thermal energy.
A generator being hand cranked to give power
Kinetic energy to electrical energy
Why is the controller important in a wind turbine?
It shuts the wind turbine down at high speeds preventing damage
How many types of energy are being used at once? What are they?
A person pedaling a bike to turn on a lamp
Kinetic energy
Chemical energy
Thermal energy
Electrical energy
Light energy
How is solar energy converted to electrical energy?
Visible light must strike the surface of a cell, this allows the electrons to absorb the energy (carried by electromagnetic radiation) and flow freely in a circuit and generate electrical energy.
What are the three main components of a generator system?
Turbine
Shaft
Generator
What are three ways kinetic energy is converted to electrical energy? (Make sure you can explain how.)
Wind turbines
Hydroelectric Dams
Run-of-river stations
What are the three main components of a battery?
Positive electrode (cathode)
Negative electrode (anode)
Electrolyte
What is BCs primary source of energy? What are ways the it is generated?
BC Hydro
Through run-of-river plants or a hydroelectric dam.
(Be sure to describe how they work)
Kinetic energy from a moving source spins the turbine
Kinetic energy from the turbine spins the shaft
Kinetic energy from the shaft is internally converted to electrical energy by the generator
How many systems use thermal energy and steam to generate electrical energy? What are they?
Nuclear
Geothermal
Fossil Fuels
What are the functions of the three components of a battery?
The anode releases electrons which are accepted by the cathode. The electrolyte allows positive ions to flow through its substance to the cathode to maintain a neutral charge.