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Energy Study Stack
| Question | Answer |
|---|---|
| What are some renewable resources? | Wind, solar, hydro-power, geothermal, and biomasss |
| What are some non-renewable resources? | Nuclear, petroleum, coal, natural gas, and oil. |
| What are fossil fuels? | A source of energy that takes thousands of years to create, such as: coal, petrolatum, and natural gas. |
| What are the forms of energy? | Chemical, electrical, mechanical, radiant, nuclear, sound, thermal, and sound. |
| What are the two states of energy? | Kinetic and potential. |
| What is force? | it is strength or energy from a physical movement. |
| What is a Newton? | A measurement of force. |
| What is a a Newton Meter? | a measurement of movement. |
| What are the four factors of friction? | surface area, smoothness, softness, and weight. |
| What is the Law of Conservation of Energy? | energy cannot be created or destroyed, it can only change form. |
| What are the calculations of work? | Weight x Distance |
| How do you reduce friction? | smooth surface or lubricate surface |
| What is a closed system? | When energy can only be transferred to other objects in the system |
| What is a open system? | When energy can be transferred to everything. |
| What is a wave? | An energy disturbance that travels from medium to medium. |
| What is a transverse wave? | the particles move at right arches to the direction of wave travel |
| What is a longitudinal wave? | the particles move parallel to the direction the wave is moving |
| What is a crest? | the highest parts of a transverse wave |
| what is a trough? | the lowest parts of a transverse wave |
| what is a medium? | a material through which a wave travels through |
| What is frequency? | the number of complete waves that pass a given point in a certain amount of time |
| What are the 10 energy sources? | water, solar, wind, plants, geothermal, coal, nuclear, oil, petroleum, and natural gas. |
| describe water | renewable, because it can be reused again and again. |
| describe solar energy | renewable, because the sun is always making sunlight. |
| describe wind energy | renewable, because uneven earth's heating is always happening, so it can be renewed easily. |
| describe plant (biomass) | renewable, since it is reproductive and plants are always growing, so it can be renewed easily. |
| describe geothermal | renewable, because the earth will always have heat in it (because of the magma) and is produced a lot |
| describe coal | nonrenewable, because coal takes thousands of years to make and cannot be replaced as easily. |
| describe fossil fuels | nonrenewable, because like coal, fossil fuels take forever to replace; hence "fossils", which take millions of years to make. |
| describe oil | nonrenewable, since oil takes thousands of years to make and cannot be replaced easily. |
| describe petroliumn | nonrenewable, since it is formed when layers of buried plants and animals are exposed to intense heat and pressure, which is over thousands of years, so it cannot be replaced easily. |
| describe natural gas | nonrenewable, because it takes a long time to replace. |
| what is thermal energy? | heat energy |
| what is chemical energy? | energy that changed because of chemical reactions |
| what is electrical energy? | energy that is created from electricity |
| what is sound energy? | energy from sound |
| what is radiant energy? | energy from light |
| what is nuclear energy? | energy that is created when atoms split apart |
| what is mechanical energy? | moving energy |
| what is frequency measured in? | hertz |
| what is amplitude? | the maximum distance the particles of a medium carrying a wave away from the rest position |
| what is wavelength? | the measurement from one trough to another, or one crest to another |
| what is a vibration? | a rapid,continuous movement |
| what is a vacuum? | a space entirely devoted of matter |
| what is pitch? | the quality of a sound due to vibrations |
| equation of speed | distance / time |
| waves that require a medium through which to travel is called what? | a mechanical wave |
| waves that are spread by simultaneous periodic variations of electric and magnetic field intensity are called what? | electromagnetic waves |
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perksofpatd
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