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Quarter 3 vocab
| Question | Answer |
|---|---|
| closed conducting loop through which an electric current can flow | circuit |
| material, such as copper wire, in which electrons can move easily | conductor |
| the net movement of electric charges in a single direction, measured in amperes (A) | electric current |
| material in which electrons are not able to move easily | insulator |
| circuit in which electric current has more than one path to follow | parallel circuit |
| circuit in which electric current has only one path to follow | series circuit |
| electric current that reverses its direction of flow in a regular pattern | alternating current |
| electric current that flows in only one direction | direct current |
| change of one substance into a new substance | chemical change |
| any characteristic of a substance, such as flammability, that indicates whether it can undergo a certain chemical change | chemical properties |
| substance formed from two or more elements in which the exact combination and proportion of elements is always the same | compound |
| substance with atoms that are all alike | element |
| any change in size, shape, or state of matter in which the identity of the substance remains the same | physical change |
| any characteristic of a material, such as size or shape, that you can observe or attempt to observe without changing the identity of the material | physical properties |
| if you decrease the volume of a container of gas and hold the temperature constant, then the pressure of the gas will increase | Boyle's Law |
| the volume of a gas increases with increasing temperature, as long as pressure does not change | Charles's Law |
| pressure applied to a fluid is transmitted unchanged throughout the fluid | Pascal's Principle |
| found that the buoyant force on an object is equal to the weight of the fluid displaced by the object | Archimedes Principle |
| explanation of the behavior of molecules in matter; states that all matter is made of constantly moving particles that collide without losing energy | kinetic theory |
| as the velocity of a fluid increases, the pressure exerted by the fluid decreases | Bernoulli's Principle |