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Science vocab
| Term | Definition |
|---|---|
| Law of conservation of energy | the total energy of an isolated system remains constant |
| wavelength | the distance between one peak and the next on a wave |
| amplitude | height or "strength" of a wave |
| frequency | the number of times that an event is repeated within a certain period; often used to refer to the number of full cycles of a wave that pass a given point in a specific period of time |
| reflection | a change in the direction of a wave when it hits a barrier and bounces back |
| volume | the amount of space that an object occupies, measured in liters or centimeters cubed |
| pitch | the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone |
| electromagnetic wave | radiant energy released by certain electromagnetic processes |
| conduction | the transfer of heat energy within an object, or between objects that are directly touching each other, due to collisions between the particles in the objects |
| convection | the transfer of heat from one place to another caused by movement of molecules |
| radiation | waves of electromagnetic energy of various wavelengths, ranging from gamma rays (shortest wavelengths) to radio waves (longest wavelengths) |
| law of reflection | when light falls upon a plane surface it is so reflected that the angle of reflection is equal to the angle of incidence and that the incident ray, reflected ray, and normal ray all lie in the plane of incidence |
| law of refraction | a formula used to describe the relationship between the angles of incidence and refraction |
| refraction | a change in the direction and velocity which occurs when a seismic or electromagnetic wave travels from one material into another of different density, state, or elasticity |