Term
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Definition
| the current in a circuit equals the voltage difference divided by the resistance |
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Term
| Law of Conservation of Energy |
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Definition
| energy can be transferred from one object to another, but it cannot be created or destroyed |
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Term
| Law of Conservation of Mass |
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Definition
| the mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change |
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Term
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Definition
| the buoyant force on an object is equal to the weight of the fluid displaces by the object |
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Term
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Definition
| pressure applied to a fluid is transmitted thruout the fluid |
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Term
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Definition
| as the velocity of fluid increases, the pressure exerted by the fluid decreases |
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Term
| Law of Conservation of Momentum |
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Definition
| the momentum of an object doesn't change unless its mass, velocity, or both change. momentum, however, can be transferred from one object to another. |
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Term
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Definition
| the fulcrum is between the input force and the output force |
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Term
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Definition
| The output force is between the fulcrum and the input force |
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Term
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Definition
| the input force is between the fulcrum and the output force |
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Term
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Definition
| the transfer of energy by collisions between particles in matter |
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Term
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Definition
| the transfer of thermal energy in a fluid by the movement of warmer and cooler fluid from place to place |
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Term
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Definition
| a material in which electrons are not able to move easily |
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Term
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Definition
| charge can be transferred from object to object, but cannot be created or destroyed |
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Term
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Definition
| a material in which electrons are able to move easily |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| the current only has one loop to flow through |
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Term
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Definition
| when the parts of a series circuit are wired one after another and the amount of current is the same through every part so that when any part of a series circuit is disconnected, no current flows through the circuit. |
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Term
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Definition
| contain two or more branches for current to move through |
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Term
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Definition
| a nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy |
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Term
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Definition
| a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy |
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Term
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Definition
1. all matter is composed of small particles (atoms, molecules, and ions.)
2. these particles are in constant, random motion.
3. these particles are colliding with each other and the walls of their container. |
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Term
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Definition
| when electrons are shared |
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Term
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Definition
| a type of chemical bond that includes a metal and a nonmetal |
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Term
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Definition
| the numbers to the left of the formulas for the reactants and products. represent the number of units of each substance taking a part in a reaction |
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Term
| Newton's First Law of Motion |
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Definition
| states that an object moving at a constant velocity keeps moving at that velocity unless an unbalanced net force acts on it |
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Term
| Newton's Second Law of Motion |
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Definition
| states that the accelaration of an object is in the same direction as the net force on the object |
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Term
| Newton's Third Law of Motion |
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Definition
| describes an action-reaction pairs this way: to every action force there is an equal and opposite reaction force |
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Term
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Definition
| the temperature at which a solid begins to liquefy |
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Term
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Definition
| the amount of energy required to change a substance from the solid phase to the liquid phase at its melting point |
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Term
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Definition
| the temperature at which the pressure of the vapor in the liquid is equal to the external pressure acting on the surface of the liquid |
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Term
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Definition
| the amount of energy required for the liguid at its boiling point to become a gas |
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Term
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Definition
| The conversion of a vapor or gas to a liquid |
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Term
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Definition
| closely packed matter with its particles vibrate at its own position |
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Term
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Definition
| Particles in gas are very far apart and are moving at a very high velocity |
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Term
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Definition
| The particles are loosely packed so it does not have a fixed shape and they collide and slide over one another |
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