apes unit 6 review
Describe how electricity is produced by a dam
A dam is built to block a river from flowing, creating a reservoir. Water from the reservoir is brought through a gate in a dam. As it moves through the dam it turns a turbine, which is connected to a generator.
How do developed and developing countries compare when it comes to energy consumption? Why?
Because economic growth leads to increased energy use and because cars consume fossil fuels, prosperity in developing countries (like China), leads to more global energy consumption
State where Chernobyl is located and explain what happened there.
Located near the city of Pripyat in the USSR Nuclear accident occured on Saturday April26, 1986 at the No. 4 reactor in the Chernobyl Nuclear Power Plant. The cause was reactor design flaws and breach of protocol during a simulated power outage safety test.
List three species that may be threatened by the construction of a solar power tower in the California Desert.
the desert tortoise, wester banded gecko, and the desert iguana
What is biogas and how is it converted into an energy source?
the mixture of gasses produced by the breakdown of organic matter in the absence of oxygen, primarily consisting of methane and carbon dioxide Biogas is used as fuel for combustion engines, which convert it to mechanical energy, powering an electric generator to produce electricity
How does a wind turbine work? What are the limitations of wind turbines? What are the advantages of using wind turbines?
use wind to make electricity. Wind turns the propeller- like blades of a turbine around a rotor, which spins a generator, which creates electricity limitations: what if no wind advantages: no air pollution, no production of atmospheric emissions that cause acid rain, domestic source of energy
Identify three examples of renewable resources
wind, solar, geothermal
Why is wood fuel commonly used in developing countries?
It is cheap and readily available
How is geothermal energy generated?
Geothermal power plants use steam to produce electricity. The steam comes from reservoirs of hot water found a few miles below the earth's surface. The steam rotates a turbine that activates a generator which produces electricity
How does fracking pollute the groundwater?
Oil and gas are produced after the well is fracked and most of the fracking fluid remains underground where it pollutes the groundwater.
What is biomass and how is it converted into an energy source?
Organic matter used as a fuel, especially in a power station for the generation of electricity When biomass is burned, the chemical energy in biomass is released as heat, biomass can be burned directly or converted to liquid biofuels of biogas that can be burned as fuels
Arrange the following types of electromagnetic radiation in order from lowest to highest energy: Ultraviolet, Microwave, Infrared, Gamma, Radio, X-ray, Visible.
Radio, microwave, infrared, visible UV
What is released when natural gas is burned (thus making it the "cleanest" fossil fuel)?
carbon dioxide and water vapor
three examples of nonrenewable resources
coal, petroleum, natural gas
What are some environmental concerns with using wood as an energy source?
deforestation, air pollution
List 4 products that are derived primarily from crude oil.
diesel fuel, heating oil, wax, asphalt
Fracking is short fo
hydraulic fracturing
List three sources of methane that are amplified by human activities.
landfills, mining, livestock
coal, petroleum, natural gas
mercury, lead, sulfur dioxide
Compare passive and active solar energy.
passive heating captures heat from the sun as it comes into your home through windows, roofs and walls to heat objects in your home active heating captures sunlight, either as heat or electricity, to augment heating systems