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
Sci. Chapter 3 vocab
electricity, energy, energy conversions
| Question | Answer |
|---|---|
| efficiency | the ratio of the desired output (work or energy) to the input |
| primary consumer | first consumer organism in a given food chain |
| secondary consumer | animals that obtain their food by feeding on only plant-eating animals |
| tertiary consumer | top of a given food chain (carnivores) |
| carbohydrate | any of various compounds of carbon, hydrogen and oxygen (as sugars, starches, cellulose) most of which are formed by green plants and which constitute a major class of animal foods |
| mass | a number that measures the quantity of matter |
| energy | the ability to move matter around |
| kinetic energy | energy of motion |
| potential energy | stored energy |
| work | the transfer of energy that involves a force acting through a distance |
| mechanical energy | the energy of an object as represented by its movement, its position, or both. |
| heath (thermal) energy | a form of kinetic energy that flows from one body to another because of a temperature differenece between them (results from the motion of molecules) |
| radiant energy | the energy of electromagnetic waves, including light |
| electrical energy | flow of electrons |
| chemical energy | the energy that is stored in the chemical bonds that holds molecules together |
| nuclear energy | the energy from a nuclear reaction (fission/fusion) |
| fusion | two nuclei coming together |
| fission | splitting of nucleus |
| closed system | a system where nothing enters or leaves-must use and reuse everything in it |
| open system | both matter and energy are exchanged between the system and the environment |
| law of conservation of matter | matter can neither be created nor destroyed, but can be rearranged |
| law of conservation of energy | energy can neither be created not destroyed. it can be transformed (converted) |
| joule | unit of measure of energy |
| first law of thermodynamics | law of conservation of energy |
| food web | food chain |
| potential energy (list) | chemical, gravitational, elastic, nuclear |
| generator | creates electricity |
| motor | uses electricity |
| parallel circuit | (blank) |
| series circuit | (blank) |
| second law of thermodynamics | (blank) |
| conductor | allows electron flow |
| insulator | prohibits electron flow |
| resistor | somewhat allows electron flow |
| voltage | pressure |
| amperage | rate of flow |
| work (formula) | force x distance |
| power (formula) | work divided by time |
| watts | joules per second |
| horsepower | 746 watts |
Created by:
tmm3493
Popular Earth Science sets