quarterly exam 2

Renewable

Energy that comes from a natural sourse

Solar Energy

from sunlight using solar panels

Wind Energy

from moving air using wind turbines

hydropower

from flowing waters (dams or rivers)

hydrothermal energy

uses hot water or steam from underground to generate electricity

geothermal energy

from heat inside the earth

biomass 

energy source that comes from organic materials

Non- renewable

energy that comes from sources that can run out or take million years to form

Non- renewable energy

Fossil fuels and nuclear energy

fossil fuels

energy sources that come from the ancient plants and animals buried underground for millions of years  (consists coal natural gas and petroleum)

coal

used to generate electricity and in factories and steam

petroleum

a natural occuring liquid found beneath the earth’s surface that can be refined into fuel

natural gas

excellent alternative

nuclear energy 

form of energy released from nucleus

Hans christian oersted

found that an electric current flowing near a compass needle would cause the needle to move

Hans christian oersted

first to show a definite connection between electricity and magnetism

right hand rule

definite relationship between the flow of electrons and the directions of magnetic field called

F=Bqv

formula

dc motor

simple electric motor