Classifying Energy
the ability to do work, cause change, or move an object some distance
what is energy
energy stored in objects that allows them to attract or repel each other
what is magnetic energy
A resource that is used in heating systems, in stoves, ovens, and some vehicles. It is the cleanest burning fossil fuel.
what is a natural gas
An energy resource that is replaceable by natural means such as trees or wind
what is renewable
What are two keys to preserving our current energy resources?
what is Increasing energy efficiently and reducing energy use.
stored energy that results from the position or shape of an object; this type of energy has the potential to do work
what is potential energy
energy that arises from the attraction or repulsion of electrical charges and occurs when certain materials are brought together
what is electrostatic energy
power produced by the splitting of atoms to produces steam to turn turbines to produce electricity
what is nuclear power
An energy resource that takes milions of years to form from the remains of plants and animals such as coal, oil, and natural gas
what is non-renewable
Name 5 ways you can conserve energy:
what is
ride bikes
shorter showers
turn off lights,
use fireplace instead of heater
use fans instead of AC
energy related to an object's height
-GPE = mass or weight x height
-unit of measure is Joule (J)
what is gravitational potential energy (GPE)
energy an object has due to its motion; a moving object can do work when it strikes another object and moves it some distance
-kinetic energy = 1/2 x m x v squared
-m = mass or weight
-v = velocity
what is kinetic energy
Energy from steam or hot water produced from hot or molten underground rocks.
what is geothermal energy
plant materials and animal waste used as fuel
what is biomass
One office building contains only incandescent lights. The building next door contains only fluorescents lights. Predict which building has higher energy bills. Explain:
what is the building with incandescent light bulbs because less than 10% is used for light and the rest is given off as heat. Fluorescent light bulbs use ΒΌ as much energy and provide the same amount of light.
energy associated with objects that can be stretched or compressed; such an object has had a change in shape
-EPE = 1/2kx squared
-k = spring constant
-x = amount of stretch/compression
-unit of measure is Joule (J)
what is elastic potential energy
energy associated with the position and motion of an object
-mechanical energy = potential energy + kinetic energy
-an object with mechanical energy can do work on another object
-the more mechanical energy an object has, the more work it can do
what is mechanical energy
energy from the sun that is converted into thermal or electrical energy
what is solar energy
Renewable energy produced by the wind.turning a generator to produce electricity
what is wind energy
How does carpooling preserve resources?
what is reducing the amount of gases being used and put into our atmosphere.
energy stored in the chemical bonds that hold compounds together
-when the bonds in compounds break, new compounds form and chemical energy may be released
-the foods you eat, matches you use to light a candle, batteries, and the cells of your body all store chemical energy
what is chemical energy
the total potential and kinetic energy OF THE PARTICLES in an object
-all objects are made up of atoms and molecules
-these particles are constantly in motion; they have kinetic energy
-these particles are arranged in specific ways; they have potential energy
what is thermal energy
A natural fuel such as coal, oil, or gas formed in the geological past from the remains of living organisms
what is fossil fuels
mechanical energy in rising and falling tides
what is tidal energy
How does insulation building help to preserve energy resources?
what is it helps the amount of heat loss to the outside during cold or hot weather.