Technology Interactions © 2007

Chapter 7: Air & Space Technologies

Self-Check Quiz

1.
Professionals who work to develop aircraft and spacecraft are
A)structural engineers.
B)aerospace engineers.
C)bioengineers.
D)mining engineers.
2.
If it starts motion, stops motion, or changes motion, it must be
A)drag.
B)inertia.
C)friction.
D)force.
3.
All flying things must overcome the forces of gravity and
A)drag.
B)momentum.
C)aerodynamics.
D)the Bernoulli effect.
4.
The force that pushes airplane wings away from the runway is called
A)friction.
B)momentum.
C)lift.
D)inertia.
5.
An airfoil can be described as
A)a type of heavier-than-air flying machine.
B)a flight-promoting shape.
C)a force that hinders flight.
D)a microburst that destabilizes airplanes.
6.
What force must be applied to propel aircraft and rockets forward?
A)thrust
B)inertia
C)drag
D)momentum
7.
Which is the best characterization of helicopter rotors?
A)cargo bay
B)rudder replacement
C)electromechanical components
D)airfoils
8.
Which scenario illustrates the principle at work in a jet engine?
A)A blown-up but untied balloon is released and flies around the room.
B)A skateboarder glides down a ramp.
C)A bird flaps its wings energetically to climb into the air.
D)An aerodynamically shaped fish zips through water almost too fast to be seen.
9.
The largest, most powerful jets can carry
A)no more than 500,000 pounds.
B)about 150,000 pounds.
C)less weight than the most powerful propeller airplanes.
D)over a million pounds.
10.
Which flying machine is not designed for travel beyond Earth's atmosphere?
A)propeller airplane
B)orbital space plane
C)space shuttle orbiter
D)rocket
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