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Quarter 3 words
Science
| Question | Answer |
|---|---|
| circuit | closed conducting loop through which an electric current can flow |
| conductor | material, such as copper wire, in which electrons can move easily |
| electric current | the net movement of electric charges in a single direction, measure in amperes |
| insulator | material in which electrons are not able to move easily |
| parallel circuit | circuit in which electric current has more than one path to follow |
| series curcuit | circuit in which electric current has only one path to follow |
| alternating current | electric current that reverses its direction of flow in a regular pattern |
| direct current | electric current that flows in only one direction |
| 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 proportion 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 | 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 |
| Boyle's law | according to the law, if you decrease the volume of a container of gas and hold the temperature constant, the pressure of the gas will increase |
| charles's law | according to the law, the volume of a gas increases with increasing temperature, as long as pressure does not change |
| Pascal principle | according to the principle, pressure applied to a fluid is transmitted throughout the fluid |
| bernoulli's principle | according to the law, as the velocity of a fluid increases, the pressure exerted by fluid decreases |
| archimedes' principle | according to the principle, the buoyant force on an object is equal to the weight of the fluid displaced by the object |
| kinetic theory | energy a moving object has because of its motion; depends on the mass and speed of the object |