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8Tech_U5L1
Technology - Unit 5, Lesson 1
| Question | Answer |
|---|---|
| Air Foil | A surface designed to contribute to the control of an object in flight |
| Application | Putting an object, system or procedure into use or practice |
| Chemical Energy | associated with the composition of a substance. |
| Distance | a measurement between two objects or points, in any direction, including three-dimensional space |
| Driving | a force that pushes or propels an object, component or system |
| Elastic Energy | It is associated with the stretching or compressing of an elastic object. |
| Electrical energy | It is associated with an electric current in a circuit. |
| Energy | the ability to do work |
| First Class Lever | A lever with a pivot point (fulcrum) in the middle, between the input and output forces |
| Force | A type of exertion on an object or system due to the interaction with another object, system or human |
| Fulcrum | the pivot point of a lever |
| Gravitational Energy | It is associated with the height of an object above a reference point. |
| Inclined Plane | A type of simple machine used to change the height of an object by rolling or sliding, as in a ramp |
| Lever | A simple machine comprised of a bar with a pivot around a point. At point A, a force is applied, using the pivot at B to provide force at point C. |
| Light Energy | It is associated with the frequency of electromagnetic waves. |
| Motion energy | It is associated with the speed of an object. |
| Power Systems | A system of components used to complete a specific rate of work in a given time |
| Power | The rate of work done over time, P=W/t with P=power, W=work and t = time. An example of power is mph - miles per hour, the amount of power needed to travel a certain number of miles in an hour. |
| Propulsion | a force that moves an object forward |
| Pulley | a type of simple machine that incorporates a rimmed wheel which holds a line and can turn within a frame to change the direction of a force |
| Rate | A speed or pace, as compared to the overall total |
| Screw | A simple machine that incorporates an inclined plane wrapped around a central pole |
| Second Class Lever | A lever that has the output force or load between the fulcrum and input force |
| Thermal Energy | It is associated with the temperature of an object. |
| Third Class Lever | A lever that has the input force between the output force and the fulcrum. |
| Wedge | A simple machine similar to the inclined plane, but intended to push objects apart |
| Wheel and Axle | A wheel with a central rod or axle that turns, allowing the wheel to turn |
| Work | Activity completed in order to achieve a specific purpose or result |