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energy
energy
What is energy?
The ability to do work
Name one form of renewable energy.
Solar, wind, hydroelectric, or geothermal energy
What is the main source of energy in the United States?
Natural gas.
What does it mean to be energy efficient?
Using less energy to provide the same service or achieve the same result.
What is wind energy?
Energy obtained from the movement of air.
Name one way energy is transferred
Conduction, connection, radiation
What is fossil fuel?
A natural fuel formed from the remains of living organisms, such as coal, oil, or natural gas.
What is the significance of energy conservation?
It helps to reduce energy consumption and protect the environment.
Name one way to save energy at home.
Using energy-efficient appliances or turning off lights when not in use.
How do wind turbines work?
They convert the kinetic energy of wind into mechanical energy, which is then converted into electricity.
What is potential energy
Energy stored into an object
How does solar energy work?
It captures sunlight and converts it into electricity or heat.
What is the greenhouse effect?
The trapping of heat in the Earth's atmosphere by greenhouse gases.
What is the purpose of Energy Star labels?
To identify energy-efficient products that save energy and money.
Name one advantage of wind energy.
It is renewable and does not produce greenhouse gases.
What type of energy is in moving objects?
Kinetic energy.
What is thermal energy?
The internal energy of an object due to the movement of its particles.
What are some impacts of climate change?
Rising sea levels, extreme weather, and loss of biodiversity.
How can public transportation help save energy?
It reduces the number of individual cars on the road, lowering fuel consumption.
What are some challenges of wind energy?
Variability in wind speed and impact on wildlife.
How can we observe energy in our daily lives?
Through activities like walking, cooking, or using electronic devices.
How does nuclear energy work?
It is produced by splitting atoms in a process called fission.
What role do governments play in energy policy?
They create regulations and incentives for energy production and consumption.
What are some benefits of using energy-efficient buildings?
Lower energy bills, reduced environmental impact, and improved comfort.
How much of the world's electricity is generated by wind energy?
Approximately 20% (as of recent estimates).