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ch7,15,16 vocab
quarter 3 test
| Question | Answer |
|---|---|
| closed conducting loop through which an electric current 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. | 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,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. | Charle's Law |
| pressure applied to a fluid is transmitted throughout the fluid. | pascal principle |
| as the velocity of a fluid increases,the pressure exerted by the fluid decreases. | Bernoulli principle |
| 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 |