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53 Cards in this Set
- Front
- Back
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Work is only accomplished when a ---moves an object some distance |
Force |
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Force is a -----or a ----'' |
Push or pull |
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----is defined as the ability to do work. |
Energy |
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The metric unit to measure work is the ----or------- |
Newton,joule |
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All energy from earth comes from the --- |
Sun |
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It travels 93 million miles through space in the form of -------,------- |
Light,heat |
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The process of energy transfers from sun,plants'animals is called the |
Photosynthesis |
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Potential energy is ------energy of energy of---------- |
Stored,position |
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A book on the edge of a table has------energy because someone uses muscle energy to lift the book against gravity |
Potential |
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It is stored energy waiting to be ------ |
Released |
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A ------book is an example of kinetik energy or the energy of-------. |
Falling,motion |
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A battery has-------,-------energy |
Chemical,potential |
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The battery energy is stored until it is attached to the circuit and is converted to------energy to light the bulb |
Heat |
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Energy appears in many forms and it can------from one from to another |
Transfer |
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The seven forms are mechanical-----chemical,radiant,---------,-----and nuclear |
Heat,electeical,sound |
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A solar cells change sunlight into--------. |
Electricity |
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Lights are an example of electrical energy changing to-------and---------energy |
Mechanical,heat |
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Mechanical energy is the energy of -------. |
Motion |
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Examples are ---------,------- energy is related to the movement of the particle that makes up matter called atoms. |
Mechanical,heat |
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The faster the movement of atoms the -----heat is produce |
More |
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Mechanical energy of rubbing hands together is changed to -------energy |
Heat |
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Chemical energy is stored in ---- such as charcoal,gasoline,and even food. |
Fuel |
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The stored energy on burning charcoal. Is released as -----which cooks our food |
Heat |
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When we eat the food the ,---------energy stored in food is used to power our mucsles |
Chemical |
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Electric energy is the movement's of -------and its a secondary energy recourse generated by using primary energy sources |
Electrons,steam |
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Magnetism can be used to produce --------. |
Electricity |
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Radiant energy includes -----,xrays,and radio waves. |
Light |
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Green plants use light in photsynthesis to make their ------l |
Life |
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Carbon d-------,w------ in sunlight make food |
Dioxide,water |
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Nuclear energy results from fission in the -------of an atom or fission of atoms |
Nucleus |
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Energy can,t be------or destroyed only -----------from one form to another |
Created,converted |
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The overall energy amount stays the ---- |
Same |
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When food is converts to mechanical energy for our use 95% is converted to ---- |
Heat |
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Amount of kinetic energy depends on -----,the object has and how ----the object is |
Mass,fast |
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Once a renewable source is used it -----be replaced. |
Can |
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Examples include |
Coal natural gas petrolium propane |
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Nonrenewable supply is---------and eventually will ru ------- |
94 percent,out |
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Fossil fuels include -------,---------,--------,---------- |
Coal,natural gas,petroleum,propane |
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They formed with tiny -------and animals that lived before dinosaurs died and sank to the bottomof -------- |
Plants,swamps |
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91% of coal mined in the u.s is used to produce ------ but is also used in the manufacture of p-'--- cement b---- |
Energy paper bricks |
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Natural-----is the cleanest burning fossil fuel and is used mostly for--------- |
Gas,heating |
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Gas companies add the smell of rotten---- to odorless natural gas so people will notice if there's a gas leak in there home |
Eggs |
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The u.s is only is estimated----years of gas left |
50 |
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Petroleum is also called oil or crude oil and is primarily used for fuel for -------. |
Enegy |
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The u.s only produces enough oil to serve about ------of its needs |
1/3 |
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Propane is very------and used for -------,and ------- |
Clean,forfeit,houses,baths |
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Renewable resources can be--------and so are sometimes considered--------- |
Replaced,limetliss |
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Renewable resources include solar-----geothermal-----and hydropower |
Wind,biomass |
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Solar energy or energy from the -----is responsible for----- of earths energy |
Sun,most |
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Wind turbines can be used to generate electricity because the turbines spin in the air and is connected to a--------which produces energy |
Generater |
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-----and. It is created 4,000 miles beneath the------of the earth |
Heat,surface |
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Active geothermal areas are found around plate boundaries where------occur |
Earthquakes |
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A biomass source of energy is Ga------ and can be burned to produce electricity |
Garbage |
