Understanding Aerodynamics and Materials

What is the branch of science that deals with the motion of bodies relative to the atmosphere surrounding them?

• Hydrodynamics

• Aerodynamics

• Thermodynamics

• Electrodynamics

What is an airfoil?

• A device used to measure air pressure

• A surface designed to obtain lift from the air

• A type of aircraft engine

• A material used in aircraft construction

What does an altimeter measure?

• Airspeed

• Altitude

• Temperature

• Humidity

What is the angle of attack in aviation?

• The angle between the aircraft's wings and the horizon

• The angle an aircraft's wings and body make relative to its flight path

• The angle between the aircraft's tail and the ground

• The angle of the aircraft's nose relative to the wind

What is Bernoulli's principle?

• A principle explaining the relationship between temperature and pressure

• A principle explaining the relationship between a fluid's kinetic energy and potential energy

• A principle explaining the relationship between mass and velocity

• A principle explaining the relationship between force and acceleration

What is the purpose of anodising metal, particularly aluminium?

• To increase its weight

• To coat it with a protective oxide layer

• To make it more flexible

• To change its colour permanently

What is the term for the resistive force a body has to motion through the air?

• Lift

• Thrust

• Drag

• Weight

What is the main structural part of the aircraft to which the wings and tail section are attached?

• Empennage

• Fuselage

• Cockpit

• Landing gear

What is the trade name of an aluminium alloy containing copper, manganese, and magnesium?

• Steel

• Duralumin

• Titanium

• Brass

What is the term for the slow permanent deformation of a material when subjected to stresses over an extended period of time?

• Corrosion

• Creep

• Fatigue

• Fracture