Galilean Laws Kepler Laws Centripetal Forces Gravitation
Galilean Laws
Tip: Remember that Galileo focused on terrestrial motion of falling and horizontal motion. Use an acronym like: GaLa_Te
- Ga: Gravity: “Objects Gain free fall have a con_Ga_nt acceleration” (9.8 m/s²).
- La: “Launched object? Horizontally Launches continue a straight path.”
- Te: Terrestrial motion: “Think Terrestrial for projectile motion - a combo of horizontal and vertical motion.”
Kepler’s Laws
Tip: Think “Planetary Elliptical Paths.”
- Plan: “Objects move in an elliptical Path with the Sun at 1 Focus.”
- ET (ExtraTerrestrial): “ET loves outer space- he knows a planet’s orbital period increases with semi-major axis cubed.”
- In verse: “Inversely proportional: speed gets lower when the semi-major axis’ square root is higher.”
Centripetal Forces- Gravitation
Tip: Remember that centripetal force and gravity deal with curved motion and forces of attraction.
- CenTrifugal or CenTripetal ?: Remember these terms always go in opposite directions.
- GraViTational Pulls: Imagine a big V for gravitational:
>V< is the Gravitational Pull!
