ARMY SIFT AVIATION INFORMATION
Newton's first law of motion - correct answer States that an object at rest will stay at rest, and an object in motion
... [Show More] will remain in motion at a constant velocity unless acted upon by an unbalanced force. The unbalanced force may be any force, such as gravity or friction. For example, a ball sitting on the floor will remain still unless a force is exerted upon it--a kick from a foot, a push from a hand, or a strong wind moving it.
Newton's Second Law of Motion - correct answer States that when a body is acted upon by a constant force, its resulting acceleration is inversely proportional to the mass of the body and directly proportional to the applied force.
Newton's Third Law of Motion - correct answer States that if two objects interact, the force exerted by the first object on the second object is equal in magnitude and opposite in the direction to the force exerted by the second object on the first object. For example, the force exerted by a tennis racket hitting a tennis ball is equal in magnitude and opposite the force exerted by the ball on the tennis racket. Likewise, during a launch of a rocket into space, the gases expelled under the rocket exert enough force to cause the rocket to lift off the launchpad in the opposite direction.
Newton's Law of Universal Gravitation - correct answer States that a particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. This law helps scientists understand the effects of gravity on aircraft during flight, because the gravitational force between two objects increases with mass and decreases with distance.
Bernoulli's Principle - correct answer Within a horizontal flow of fluid, point of faster fluid speed will experience less pressure than points of slower fluid speed. The curvature of an airplane wing causes air to pass faster over the top of the wing (creating a lower pressure area) than under the wing (a higher pressure area). [Show Less]