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Applied Physics

Mr K Applied Physics

Applied Physics The branch of science that applies the principles of science to solve engineering problems.
Closed Loop System A system that uses feedback from the output to control the input.
Conservation of Energy The total energy of an isolated system remains constant no matter what internal changes take place, with energy disappearing in one form reappearing in another.
Diameter A straight line passing from side to side through the center of a circle or sphere.
Energy The ability to do work.
Evaluation The collection and processing of information and data in order to determine how well a design meets the requirements and to provide direction for improvements.
Fabrication The assembly of parts into a structure.
Force The influence on an object which causes it to accelerate.
Friction The resistance that one surface or object encounters when moving over another.
Fulcrum The point around which a lever turns or is supported.
Gravity A force of attraction between all matter.
Inclined Plane A flat surface set at an angle used to help raise or lower objects.
Input Something put into a system, such as resources, in order to achieve a result.
Joule The unit of energy or work in the MKS system of units, equal to the work done by a force of one Newton-meter.
Kinetic Energy The energy which a body possesses because of its motion.
Lever A rigid bar resting on a pivot point or fulcrum, used to move a load with one end when pressure is applied to the other.
Mechanical Advantage The ratio of the force that performs the useful work of a machine to the force that is applied to the machine. MA = F0 / Fi
Mechanism An assembly of moving parts completing a complete functional motion.
Model A visual, mathematical, or three-dimensional representation in detail of an object or design, often smaller than the original. A model is often used to test ideas, make changes to a design.
Motion A continuous change of position of a body.
Newton’s Laws of Motion Laws proposed by Isaac Newton that explain how force and motion work.$
Open Loop System A control system that has no means for comparing the output with input for control purposes.
Output The results of the operation of any system.
Potential Energy The energy of a particle, body, or system that is determined by its position or structure.
Prototype A full-scale working model used to test a design concept by making actual observations and necessary adjustments.
Pulley A solid disc that rotates around a center axis. It usually has a groove around the outside edge that allows ropes or belts to easily ride around it.
Radius A straight line from the center to the circumference of a circle or sphere.
Screw A cylinder with a spiral ridge or thread running round the outside that can be turned to seal an opening, apply pressure, adjust position, etc.
Simple Machine Any of several elementary mechanisms that are used to transmit or modify force or motion. Simple machines include the lever, wheel and axle, pulley, screw, wedge, and inclined plane.
Speed The magnitude of the total distance traveled divided by the time elapsed.
Subsystem A major part of a system which itself has the characteristics of a system, usually consisting of several components.
System A group of interacting, interrelated, or interdependent elements or parts that function together as a whole to accomplish a goal.
Test A procedure in which the performance of a product is measured under various conditions.
Torque A twisting force.
Velocity A vector quantity that includes the speed and direction of an object.
Wedge A piece of a substance (as wood or iron) that tapers to a thin edge and is used for splitting wood and rocks, raising heavy bodies, or for tightening by being driven into something.
Wheel and Axle A mechanical device consisting of a grooved wheel turned by a cord or chain with a rigidly attached axle (as for winding up a weight) together with the supporting standards.
Work A result of a force moving an object a certain distance.
Created by: rklimbal