Fossil Fuels
Geothermal Energy
Hydroelectric Energy
Wind and Solar Energy
Nuclear Energy and Biomass
100
What do you call a black combustible rock made up of elemental carbon, hydrogen, oxygen, nitrogen, and varying amounts of sulfur which formed from the remains of plants that once grew in swamps and adjacent forests million years ago?
Coal
100
The rate of change in temperature with depth
geothermal gradient
100
What electricity is generated from hydropower?
Hydroelectricity
100
Almost all forms of energy comes from this.
The Sun
100
What is the energy stored in the nucleus of an atom?
Nuclear Energy
200
What is petroleum?
A liquid fossil fuel
200
What is geothermal energy?
Energy produced from the heat inside the earth.
200
What generates the hydropower?
falling water of fast running water
200
A _______ is a device that harnesses the kinetic energy of some fluid - such as water, steam, air, or combustion gases - and turns this into the rotational motion of the device itself.
turbine
200
What is the difference between fission and fusion?
300
What is the difference between renewable and nonrenewable resources?
Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. This is usually due to the long time it takes for them to be replenished. Renewable resources are replenished naturally and over relatively short periods of time.
300
Give an example of how Earth's heat is manifested at the surface.
Volcanic eruption, geysers, hot springs
300
What is the largest hydroelectric dam in the Philippines?
San Roque Dam in Pangasinan
300
A collection of individual wind turbines
wind farm
300
What are the two problems associated with nuclear power plants?
Maintaining temperature and radioactive waste
400
How are fossil fuels created?
Fossil fuels are formed when organic matter that has been buried deep within the earth are subject to heat and pressure over millions of years.
400
Why geothermal power plants have relatively little environmental impact?
They do not burn any fuel to create electricity.
400
How does Hydroelectric Energy work?
Flowing water creates energy that can be captured and turned into electricity. Hydroelectric power plants use dams on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity.
400
a device that converts solar energy into electricity (Give the general name.)
solar collector
400
Compare and contrast fossil fuel and biomass.
Both came from living organisms. Fossil fuel is non renewable; biomass is renewable.
500
How does the burning of fossil fuels affect the carbon cycle?
The burning of fossil fuel rapidly increased the amount of carbon dioxide in the atmosphere which cannot all be absorbed by the trees and plants, thus increasing the CO2 concentration and affecting the global temperature of the Earth.
500
Explain how electricity is generated using the heat of the Earth.
The plants collect steam from the hot water heated within the earth. The steam is used to run the turbines and generate electricity. The steam then colled and injected back to the earth as ground water.
500
Give two disadvantages of generating hydroelectric energy?
Environmental Consequences, Expensive, effect of droughts, Limited Reservoirs
500
How solar power works?
A solar collector collects the sunlight which eventually converted into electrical energy. Solar farms use turbine (steam-driven). The electrical energy generated can be stored in battery which could be used anytime.
500
How are biofuels generated?
