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chapter 3___
| Question | Answer |
|---|---|
| circuit | closed conducting loop through which an electric current can flow. |
| conductor | material, such s copper wire, in which electrons can move easily. |
| electric current | the net movement of electric charges in a single direction, measured in amperes |
| insulator | material in which heat flows slowly. |
| parallel circuit | circuit in which electric current has more than one path to follow. |
| series circuit | circuit in which electric current has only one path to follow |
| chemical change | change of one substance into a new substance. |
| chemical properties | any characteristic of a substance, such as flammability, that indicates whether it can undergo a certain chemical change. |
| compound | substance formed from two or more elements in which the exact combination and proportions of elements is always the same. |
| element | substance with atoms that are all alike. |
| physical change | any change in size, shape, or state of matter in which the identity of the substance remains the same. |
| physical properties | my characteristic of a material, such as size or shape, that you can observe or attempt to observe without changing the identity of the material- |
| boyle's law | |
| charles's law | |
| pascal principle | |
| bernoulli's principle | |
| archimedes principle | |
| Kinetic theory | energy a moving object has because of its motion; depends on the mass and speed of the object. |