energy Flashcards
what are renewable energy sources
Energy that comes from the planet’s non-finite resources is considered to be renewable.
what are examples of renewable energy sources
This includes wind, wave and tidal, hydroelectric, geothermal, biomass and solar energy.
how does tidal energy work
water moves in and out past the turbine as tides flow , the turbines then turn because of the tide which produces electricity , which is passed through underwater cables.with blades rotating 12-to-18 times a minute depending on tide strength
how does hydroelectric power work
Hydroelectric stations convert falling water’s energy into electricity, utilizing dams or natural drops. Water flows through a penstock to drive a turbine connected to a generator, producing electricity.
how can generators be turned indirectly
These are the steps by which electricity is generated from fossil fuels:
1.Heat is released from fuel and boils the water to make steam.
2.The steam turns the turbine.
3.The turbine turns a generator and electricity is produced.
- The electricity goes to the transformers to produce the correct voltage.
what is Pneumatics and hydraulics
they are both branches of fluid power technology, which use fluids to generate, control, and transmit power. The main difference between them is the type of fluid they use
Pneumatics – Uses compressed air or gas to create motion and force.
Hydraulics – Uses liquids (usually oil or water) to transmit power.
where is pneumatics used?
It is commonly used in factory automation, air brakes in vehicles, and air-powered tools.
where is hydraulics used?
it is used in heavy machinery like excavators, hydraulic presses, and car braking systems because liquids are incompressible and can generate high forces.
what is kinetic energy
Kinetic energy is the energy involved in motion. Any object in motion has kinetic energy
what is a flywheel and what is it used for
A rotating flywheel is a traditional way to store kinetic energy. Flywheels can provide continuous energy when the primary energy source is discontinuous, or deliver bursts of energy when required, by accumulating stored energy in the flywheel over a period of time and releasing it when required
