Fichas
SOLAR HEATING OF THE EARTH
Fichas del conjunto (26)
- 1What is the sun powered by?Nuclear fusion.
- 2How do hydrogen nuclei produce helium nuclei and large amounts of energy?They combine together at extreme temperatures and pressures to produce them.
- 3How much energy is there per square meter of the sun's surface in watts?It is 63 millions watts per square meter.
- 4How much energy is there over the sun's whole surface in watts?378 billion, billion, billion watts
- 5How much of the total energy from the sun is used by the human activities?15 thousand billion watts which is about ten-trillionth of the Sun's energy output.
- 6What is the solar energy that enters the Earth's atmosphere called?Electromagnetic radiation.
- 7What is an electromagnetic spectrum?A range of different forms of light and other energy carrying waves.
- 8Which type of wavelength ( shorter or longer ) do X-ray's and ultraviolet lights have?Shorter wavelengths
- 9Which type of wavelength ( shorter or longer ) does infrared radiation have?Longer wavelengths.
- 10What is the ozone layer?A thin layer high in the atmosphere that absorbs ultraviolet radiation.
- 11What would happen if the ozone layer did not absorb ultraviolet radiation?The ultraviolet radiation would reach Earth's surface and increase sunburn and rates of skin cancer.
- 12What are some examples of high energy forms of electromagnetic radiation that could damage cells in living organisms?Gamma rays and X-rays.
- 13How can this be prevented from happening?The nitrogen and oxygen molecules absorb them.
- 14What affect does this have?It heats the air but protects living organisms from potentially harmful rays.
- 15What are greenhouse gases?They are gases in the atmosphere that absorb electromagnetic radiation.
- 16What are some examples of greenhouse gases?Water vapor, methane and carbon dioxide.
- 17What do greenhouse gases do?They absorb lower energy waves such as infrared radiation.
- 18What does infrared radiation do?Carry heat energy.
- 19How is balance maintained in Earth in order for all life to exist?It happens when as much as the energy radiated out into space in the same which the Earth receives from the Sun.
- 20What would happen if less energy was lost than gained?The Earth would slowly heat up.
- 21What would happen if more energy was lost than gained?The Earth would slowly cool down.
- 22What is the greenhouse effect?Absorption of electromagnetic radiation by gases in the atmosphere, warming Earth.
- 23What is the enhanced greenhouse effect?Effect of increase in greenhouse gas concentration
- 24What is the brown "smog" sometimes seen over cities?It is a combination of nitrogen oxides and other pollutants with moisture in the air.
- 25How can volcanoes influence climate?They release carbon dioxide which is a greenhouse gas which could contribute to warming.
- 26What would happen if there were no ocean currents?The climates in many parts of the world would be different.
Información
- Descripción
- Flashcards on the solar heating of the Earth
- Creado por
- Rawan Ibrahim
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