Airman Chapter 3

Front 1

The willingness of an object to stay at rest
because of inertia is described by which of
Newton's laws of motion?

Back 1

Newton's first law of motion, which describes an object's willingness to stay at rest
because of inertia

Front 2

A heavy object will accelerate more slowly
than a light object when an equal amount of
force is applied. Which of Newton's laws
describes this statement?

Back 2

Newton's second law of motion, which describes the reason why, when equal force
is applied, a heavy object accelerates slower than a light object.

Front 3

If you blow up a balloon and then release it, it
will move in what direction?

Back 3

If you inflate a balloon and then release it (without tying the neck), it will move opposite
the direction of the escaping air (Newton's third law of motion).

Front 4

When fluid reaches a narrow part of a tube, its
speed increase and its pressure is decreased.
What law does this statement describe?

Back 4

Bernoulli's principle states that "as fluid reaches a narrow or constricting part of a
tube, its speed increases and its pressure decreases."

Front 5

What happens when the relative wind strikes
the leading edge of an airfoil?

Back 5

The flow of air is split.

Front 6

Describe how lift is developed.

Back 6

Lift is developed by the difference in air pressure on the upper and lower surfaces
of an airfoil. As long as there is less pressure on the upper surface than on the
lower surface, an aircraft will have lift.

Front 7

What are the four forces that affect flight?

Back 7

The four forces that affect flight are lift, weight, thrust, and drag.

Front 8

Any vehicle (ship, car, or aircraft) is capable
of making what three primary movements?

Back 8

Roll, pitch, and yaw.

Front 9

How does the pilot change the angle of attack
on (a) an airplane and (b) a helicopter?

Back 9

(a) An airplane's angle of attack is changed by raising the nose.
(b) A helicopter's angle of attack is changed by increasing the pitch of the rotor
blades.

Front 10

What is the main difference between a
helicopter and an airplane?

Back 10

The main difference between a helicopter and an airplane is the way lift is
achieved.

Front 11

What maneuver can a helicopter perform that
an airplane cannot?

Back 11

A helicopter can hover.