NS2 Test Bank: NS2-M3C18 - Motion, Force, and Aerodynamics

Front

The unit of power in the SI system; that power which produces energy at the rate of 1 joule per second.

Back

Watt

Front

The capacity to do work; the property of a system that diminishes when the system does work on any other system, by an amount equal to the work so done.

Back

Energy

Front

The science that deals with the motion of bodies moving through air and other gases.

Back

Thrust

Front

Velocity and speed are often used interchangeably, but to be technically correct a velocity must always include __ while speed does not.

Back

direction

Front

Early philosophers were correct in their conclusion that as a natural law an object's speed depends on the force applied vs. resistance.

Back

False

Front

That component of the total aerodynamic force exerted by the air on an airfoil, having a direction opposite to the force of gravity, enabling an aircraft to stay aloft.

Back

Lift

Front

Which is the only basic unit that both the SI and English Systems share?

Back

Time

Front

In motion calculations, "pound" is a unit of which of the following? Acceleration, Velocity, Force, Mass

Back

Force

Front

The force that is necessary to keep an object moving in a circular path and that is directed inward toward the center of rotation.

Back

Centripetal force

Front

Something that has both magnitude (length or size) and direction

Back

Vector quantity