Types & Sources of Energy
Name two renewable and two nonrenewable sources of energy
- solar, hydro, wind, tidal, etc
- coal, nuclear, oil/fossil fuels, natural gas
The flow of electric charge is called this.
What is current
Why are offshore wind turbines often more efficient than land-based ones?
What is
- stronger steadier winds over water
What are the four main stages of electricity delivery?
What is
- Generation, Transmission, Distribution, Consumption.
These are devices that use energy 24/7 even when nothing is plugged in
- an energy vampire
What energy type emits the most CO₂ per unit of electricity
What is coal
Compare a series circuit and a parallel circuit.
- series circuit has one pathway
- Parallel circuit has multiple pathways
Name one environmental benefit and one challenge of offshore wind.
What is
- clean energy, artificial reef
- cost, marine impact.
Why is electricity transmitted at high voltages?
What is
- to reduce current and energy loss through resistance
Batteries store this type of energy
What is
- Chemical energy
What type of energy relies on plate tectonics and why
What is geothermal energy
- It requires regions where magma or hot rock is near Earth’s surface — typically near tectonic boundaries.
What happens to brightness if you add more bulbs to a series circuit?
What is
- it decreases
Why are floating offshore wind farms becoming more common?
What is
- Increased accessibility (can put them in deeper water)
What does it mean to “sell energy back to the grid”?
- using energy from an off grid source and giving excess energy back to the grid
This metal is commonly used in rechargeable batteries.
- Lithium
Explain one advantage and one disadvantage of nuclear energy.
What is
- no carbon emissions, Reduced dependency on fossil fuels
- Heats bodies of water, High development and construction costs,
If a circuit has 9V and 3Ω of resistance, what is the current?
What is
- 3 amps
Name one industry that needs to be considered when selecting a location for wind farms
what is
-shipping, commercial fishing
What is
- 240V/120V
Explain why energy storage is important for renewable energy sources.
- energy that is not produced constantly like wind/solar, can be stored and used at a later date
Explain a cool energy feature used in iceland
- what is they use geothermal energy to heat sidewalks and melt ice
Name the three main parts of a simple circuit.
What is
- power source, conductor, load
Name all of the components of an offshore wind farm
What is windmills, platforms/foundation, underwater cables, substation
- what is
the number of coils wrapped around an iron core increases/decreases
Describe how pumped hydro storage works as a large-scale energy storage system.
What is
- Energy is used to pump water to higher elevations where it can be stored as "potential energy". Then potential energy is released turning into kinetic energy and kinetic energy turns into electrical energy.