ARMY SIFT EXAM || with 100% Error-free Answers.

Law of Inertia correct answers an object at rest will stay at rest, and an object in motion will remain in motion at a constant velocity. Unless acted upon by an unbalanced force. Sliding or kinetic friction correct answers One object slides along the surface of another object Fluid friction correct answers resistance on an object when it is moved through air, gas, or a fluid. Ex. fish through water. Rolling friction correct answers friction that occurs when an object rolls over a surface. Ex. when a bowling ball rolls down and alley. Static friction correct answers Friction that acts on objects that are not moving. Ex Tash can initially stays in place due to static friction when an attempt is made to move it. Newton's Second Law correct answers Force equals mass times acceleration. A body is acted upon by a constant force its resulting acceleration is inversely proportional to the mass and directly proportional to the applied force. Newton's Third Law correct answers For every action there is an equal and opposite reaction Newton's Law of Universal Gravitation correct answers Every object in the universe attracts every other object The force is directly proportional and their masses are inversely proportional to the square of the distance between them. Ex. if the distance is increased by 4 the force decreases by a factor of 16 (squared) Bernoulli's Principle correct answers the rule that a stream of fast moving fluid exerts less pressure than the surrounding fluid Fluid Pressure according to Bernoulli principle correct answers Fluids moving at a point in a horizontal pipe at a higher speed have lower pressure than fluids moving at a point at a slower speed. Four forces of flight correct answers lift, weight, thrust, and drag Weight correct answers The force of gravity pushing the aircraft down Lift correct answers the upward force required to lift the aircraft Thrust correct answers The force applied in order to move the aircraft forward Drag correct answers the force that slows the aircraft down in preparation for landing Aircraft weight and balance correct answers must be calculated during preflight