Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Test 1 !<33
Energy and Energy Resources
| Question | Answer |
|---|---|
| Kinetic energy depends on | speed and mass |
| Gravitaional potential energy depends on | weight and height |
| What is an example of something that is not a renewable resource | nuclear energy |
| What are some renewable resources | wind energy ; solar energy ; geothermal energy |
| What is a conversion from chemical energy to thermal energy | Food is digested and used to regulate body temperature. Charcoal is burned in a barbecue pit. Coal is burned to boil water. |
| Machines can | Transfer energy and convert energy |
| In every energy conversion, some energy is always converted into | Thermal energy |
| An object that has kinetic energy must be | in motion |
| What is an example of something that isnt a fossil fuel | firewood |
| What are some examples of fossil fuels | gasoline, coal, and natural gas |
| What is an example of something that is not an energy source | an electric generator |
| What are some examples of energy sources | falling water ; plant matter |
| The kinetic energy of an object can be found if the object's ____ are known. | speed and mass |
| Thermal energy : | a measure of particle motion |
| electrical energy : | the energy of moving electrons |
| light energy : | the result of vibrations electrically charged particals |
| When one object does woek on another, energy is | transferred |
| Because woek and energy are so closely related, they are both expressed in | joules |
| ____ is sotred in a stretched rubber band | potential energy |
| At what point does a roller coaster have the greatest potential | the top of the biggest hill |
| When rolling downhill, a roller coasters potential energy is converted into | kinetic energy |
| The cleanest burning fossil fuel is | natural gas |
| The United States' primary source of electrical energy is generated by | burning fossil fuels |
| Petroleum was formed from the remains of ____ that were in shallow prehistoric lakes and seas. | organisms |
| ____ is electrical energy produced from falling water. | hydroelectricity |
| ____ is a well-defined group of objects that transfer energy between on another. | closed system |
| Organic matter that can be burned to release energy is called ____. | biomass |
| ____ is the result of heating the earth's crust | geothermal |
| ____ can be used and replaced in nature over a relatively short period of time. | renewable resources |
| In a process called ____, the nucleus of a uranium atom is split into two smaller nuclei, releasing nuclear energy. | nuclear fission |
| ____ are energy resources that formed from the buried remains of plants and animals that lived millions of years ago. | fossil fuels |
| Some energy resources, called ____, either cannot be replaced after they are used or can be replaced only over thousands or millions of years. | nonrenewable resources |
| If it were possible, a ____ would be a machine that runs forever without any additional energy. | perputal motion machine |
| The ____ states that energy can neither be created nor destroyed. | law of conservation of energy |
| ____ is a force that opposes the motion between two surfaces that are touching. | Friction |
| An ____ is a change from on form of energy into another. | energy conversion |
| ____ energy is the energy an object has because of its position or shape. | potential |
| The thermal energy of a substance changes eith the ____ of its particles. | kinetic energy |
| ____ is the ability to do work. | energy |
| Name three renewable resources | water ; wind ; biomass |
| Name three nonrenewable resources | coal ; petroleum ; natural gas |
| Explain energy conversion | Energy conversion is getting the energy you already have and change it into a form you need. You can use machines to help you convert the energy. Although some energy during the conversion will always be lost th thermal energy. |
Created by:
100001178665194
Popular Physical Science sets