Energy Flashcards
What is energy measured in?
Energy is measured in joules
What is Solar energy?
Solar energy is from the sun.
Different energy types
Geothermal energy
Wave energy
Hydro electric
Biomass
Different energy stores
Electrotastic
Elastic
Gravitational
Why do we need energy?
Energy fuels your body’s internal functions, repairs, builds and maintains cells and body tissues, and supports the external activities that enable you to interact with the physical world. Water, your body’s most important nutrient, helps facilitate the chemical reactions that produce energy from food.
What are watts?
Power in general is defined as energy over time. Watts are defined as 1 Watt = 1 Joule per second (1W = 1 J/s) which means that 1 kW = 1000 J/s. A Watt is the amount of energy (in Joules) that an electrical device (such as a light) is burning per second that it’s running.
What is tidal energy?
Tidal energy is energy produced by the tides of the ocean. Tides are produced by the pull of gravity from the Moon as well as the spin of the Earth. There is a lot of energy in the movement of that much water.
What is wind energy?
The wind is produced as a result of large movements of air, driven by energy from the Sun. This means that the kinetic energy in wind is a renewable energy resource. As long as the Sun exists, the wind will too.
What is geothermal energy?
The inside, or core, of the Earth is very hot. This heat sometimes breaks through to the surface of the Earth through volcanoes or geysers. When we use heat from the Earth to generate energy it’s called geothermal energy.
What is geyser?
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a hot spring in which water intermittently boils, sending a tall column of water and steam into the air.
What is biomass energy?
Biomass energy is generated from decaying plant or animal waste. It can also be an organic material which is burned to provide energy, eg heat, or electricity. An example of biomass energy is rapeseed (yellow flowers you see in the UK in summer), which produces oil.
