Fundamental Concepts in Physics: Energy, Matter, and Forces
Classified in Chemistry
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Energy Transformation and Forms
- Energy a body possesses due to its motion: Kinetic Energy.
- Energy stored in substances like food, gasoline, and other fuels: Chemical Energy.
- Energy of position or state (often associated with bodies at rest): Potential Energy.
- Potential energy is energy that manifests movement through transformation (e.g., falling objects).
- A primary source of energy (often confused with mechanical energy): Light Energy (Electromagnetic Radiation).
- This type of energy is used to operate engine heaters: Thermal Energy (Heat).
- A powerful energy source released from atomic nuclei: Nuclear Energy. (Note: Photosynthesis is a process, not a form of energy transformation into nuclear energy).
- Processing of oil, gas, or wood by combustion manifests Chemical Energy being converted into heat and light.
- Energy source for moving vehicles: Chemical Energy (fuel).
- Energy that allows a hammer drill or pneumatic power drill to break pavement: Kinetic Energy (or Mechanical Energy).
- Falling water from a dam moves a generator, producing Electricity (conversion from Gravitational Potential Energy).
Properties and States of Matter
- Dimensional measure of space that a body occupies: Volume.
- Quantity of matter which comprises a body and can be measured with a scale: Mass.
- The principle that no two bodies can occupy the same space simultaneously: Impenetrability.
- The capacity of a solid material to resist changes and recover its original form: Elasticity.
- The ability of molecules to mix with other gases (often confused with sublimation): Diffusion.
- The relation between mass and volume: Density.
- The minimum expression of matter in physics: (Concept missing).
- The phase change where a substance goes from gas directly to solid without passing through the liquid state: Deposition (or Desublimation). (Note: Sublimation is solid to gas).
Intermolecular Forces and Material Changes
- Intermolecular force of attraction observed between particles that form a body: Cohesion.
- Processes in which the original nature of a material is transformed: Chemical Reactions.
- A membrane or protective liquid barrier formed thanks to the cohesive force of molecules on the surface: Surface Tension.
- Characteristic property of the material before a change occurs (often related to its initial state).
- Intermolecular force of attraction between particles that form different bodies: Adhesion.
- Transformation of a material while retaining its original characteristics: Physical Changes.
- Materials formed by two or more substances in any proportion, which retain their specific properties: Heterogeneous Mixtures.
- Technique primarily used for separating minerals (e.g., Flotation or Magnetic Separation).
- Separation of a heterogeneous liquid-solid mixture (e.g., Decantation or Filtration).
- The substance present in a lesser proportion in a solution; the substance that dissolves: Solute.
Concepts in Mechanics and Simple Machines
- Máquinas (Machines)
- Cuña (Wedge)
- Dirección (Direction)
- Resistencia (Resistance/Load)
- Equilibrio (Equilibrium)
- Tornillo (Screw)
- Máquinas (Machines)
- Fuerza (Force)
- Palanca (Lever)
- Sentido (Sense/Direction)