Apologia General Science (Sonlight) Module 4
About this set
Created by:
janiemoose on October 7, 2010
Subjects:
apologia general science 2nd. ed.
Description:
Vocabulary from the Sonlight Instructors Guide
Classes:
The Beast's Biology Group (and other sciences), Apologia General Science, CC, All Cycles, EEL, Challenge A, B, & I, Pendergast School of Thought, Apologia General Science
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24 terms
Terms | Definitions |
|---|---|
 Applied science | The motivation behind it is aimed at trying to find something useful |
| Technology | Is a new process or machine that makes life better or makes a job easier |
| Simple Machine | A device that either multiplies or redirects a force |
| Force | A push or pull exerted on an object to change that object's velocity |
| Fulcrum | A fixed point |
| Lever | Simple machine that magnifies either force or motion |
| Effort | The force being applied to the lever |
| Resistance | The weight the machine is manipulating |
| Mechanical Advantage | The amount by which force or motion is magnified in a simple machine |
| Mechanical advantage for the lever | Distance from the fulcrum to effort divided by the distance from fulcrum to resistance |
| First class lever | The fulcrum is positioned between the effort and resistance |
| Second class lever | The fulcrum is positioned at one end of the bar and the resistance is between the fulcrum and the effort |
| Third class lever | The fulcrum is at one end of the bar and the effort is between the fulcrum and the resistance |
| Diameter | The length of a straight line that travels from one side of a circle to another and passes through the center of a circle |
| Mechanical advantage for the wheel and axle | Diameter of the wheel divided by the diameter of the axle |
| Pulley | A grooved wheel that rotates freely on a frame |
| Block and tackle | Multiple pulley system. Mechanical advantage for pulleys in a block and tackle = numbers of pulleys used |
| Inclined Plane | Allows you to slide the load up rather than lifting it straight. |
| Mechanical advantage of the inclined plane | Length of the slope divided by height |
| Wedge | Generally used to separate things |
| Mechanical advantage for the wedge | Length of the slope divided by height |
| Pitch | The vertical distance between the threads of the screw |
| Mechanical advantage of the screw | circumfrence divided by pitch |
| Circumference | The distance around a circle, equal to 3.1416 times the circle's diameter |
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