Drag

The forward force produced by the powerplant/propeller or rotor.

• lift

• weight

• thrust

• drag

In order for an aircraft to start moving; ____ must be exerted and greater than ____.

• lift / weight

• weight / drag

• thrust / drag

• thrust / weight

Which type of air is the least dense?

• warm air

• cold air

The type of drag illustrated

• interference drag

• skin friction drag

• induced drag

• form drag

The most efficient machines are generally 100% efficient.

• true

• false

Answer explanation

No machine is 100% efficient.

Whenever an airfoil is producing lift, the pressure on the lower surface of the wing is less than that on the upper surface of the wing (Bernoulli’s Principle).

• true

• false

The measurement of the force that tends to draw all bodies to the center of the Earth.

• mass

• weight

• centripetal force

• acceleration

Tags

NGSS.MS-PS2-4

Something went wrong in the classroom - whose fault is it?

• Jaden Nelson

• Lani

• Sydney

• JJ

• Nyrobi

The annoying type of drag that is comprised of all the forces that slow an aircraft’s movement.

• parasite drag

• induced drag

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The type of drag illustrated

• interference drag

• skin friction drag

• induced drag

• form drag