Physics Review

this is all from a new book i got to continue to prepare for the FAA exam this fall.

1.) the inertia of a body is determined by its speed, changes in altitude do not affect inertia.
2.) when a helicopter climbs at increasing airspeed, its inertia does not change but its momentum increases.
3.)when the mass of air thru a rotor system becomes less, the downward acceleration must be greater to provide the same opposing force.
4.) when a helicopter is in a steady rate turn at a constant airspeed, the aircraft is NOT accelerating b/c its constantly changing its direction.
5.) during a constant radius/steady rate turn at a constant airspeed, all forces acting on the helicopter are balanced and the helicopter IS in equilibrium.
6.) ignoring fuel burn off, as an aircraft continues to gain altitude, its mass doesn't vary, earth attractional forces become weaker and aircraft weight becomes less.
7.) assuming the mass of an aircraft and its airspeed remain constant, the centripetal force required to turn it on a reducing radius must be greater.
8.) a couple consists of TWO equal, parallel and opposite forces, and when these forces act around a point equidistant between the forces, the couple tends to produce torque.
9.) the strength of a moment is decreased with the lever arm increases.
10.) assuming your helicopter has a constant mass, its kinetic energy quadruples when tis airspeed doubles.

im certain these are all correct but eventually i will be double checking them.
next review will be on the atmosphere.