Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
apologia study mod 4
general science apologia module four
| Question | Answer |
|---|---|
| the goal of science | to find out why; motivated by curiosity |
| the goal of applied science | to make something better |
| technology | the invention of a new process or machine that makes life better or makes a job easier |
| simple machine* | a device that reduces the amount of force needed to perform a task or changes the direction of a force |
| force* | a push or pull that changes the motion of an object |
| mechanical advantage* | the amount by which force or motion is magnified in a simple machine |
| first-class lever | magnifies and changes direction of the effort |
| second-class lever | magnifies but does not change direction of the effort |
| third-class lever | magnifies speed but does not magnify or change direction of the effort (effort is greater) |
| mechanical advantage of a lever = | (distance from fulcrum to effort) ÷ (distance from fulcrum to resistance) |
| diameter* | the length of a straight line that travels from one side of a circle to another, while passing through the center of the circle |
| mechanical advantage of a wheel and axle = | (diameter of the wheel) ÷ (diameter of the axle) |
| mechanical advantage of an inclined plane, wedge, or double wedge = | (length of slope) ÷ height |
| mechanical advantage of a screw = | circumference ÷ pitch |
| circumference* | the distance around a circle, equal to pi (approximately 3.1416) times the circle's diameter |
| how do you find the circumference of a screw | diameterof the screw head times pi |
Created by:
study stacks2
Popular Science sets