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| Questão | Responda |
| Absolute Uncertainty | Absolute uncertainty is a direct statement of the confidence limits of a reading, for example the statement that an electric current is 2.32 A implies absolute uncertainty of +-0.01 A |
| Analyser | An analyser is a polarizer used to detect polarized light |
| Avogadro constant | This is the number of atoms in 0.012 kg of carbon-12, i. e. in one mol. It is 6.02 * 10^-23 |
| Brewster's law | At one particular angle of incidence, EM reflecting from surface will be completely plane polarized. This happens when: n = tan (phi) [n is refractive index between media involved (phi) is incident angle for completely plane-polarized reflections] |
| Compressions | Compressions are the points on a longitudinal wave where all the particles are 'bunched together' (high pressure). |
| Correlation and cause | Two measurements are correlated if there is a statistical/mathematical link between the measurement. Two measurements are said to have a casual link if one measurement is related to a factor that causes a change in the second measurement . The fact that two measurements are correlated does not imply that there is a casual link between two. |
| Hooke's Law | Hooke's law is a principle of physics that states that the force F needed to extend or compress a spring by some distance X is proportional to that distance. It is expressed as F=kx |
| Law of conservation of linear momentum | The law of conservation of linear momentum states that the total linear momentum of a system of interacting particles remains constant provided there is no resultant external force (i.e. the system is isolated). |
| Centripetal acceleration | Centripetal acceleration is the acceleration of an object moving at constant speed in uniform circular motion. Even though the speed is constant, the direction of the object’s velocity is changing all the time, so the object must be accelerating. |
| Damping | Damping involves a force that is always in the opposite direction to the direction of motion of the oscillating particle and is a dissipative force (i.e. the oscillating particle loses energy). |
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