1.
A real world limit on a solution for example safety needs, time, money, or materials
A
constraint
B
criteria
C
evaluation
2.
the desirable feature of a solution
A
information
B
constraint
C
criteria
3.
the process of designing new or improved technology
A
engineering
B
mining
C
optimize
4.
figuring out what when wrong with a solution
A
story telling
B
failure analysis
C
test subject
5.
a test that does not give any advantages to the conditions or objects being tested
A
unfair test
B
cheating
C
fair test
6.
to make a solution as good as possible
A
diminish
B
optimize
C
failure
7.
anechoic means
A
no echoes
B
many echoes
C
all the echoes
8.
an anechoic chamber is used to test_____________ the walls of the chambers are designed to absorb sound waves.
A
TV's, Ipads and Iphones
B
speakers, headphones and microphones
C
oceans, rivers and ponds
9.
ear trumpets with longer tubes helped ______________ sounds. they we easier to hold and direct towards the sound.
A
deminish
B
cancel
C
amplify
10.
early ear trumpets collected and directed sound waves to the listeners ear. the device works best when the sounds were _________________. the small end is held near the ear.
A
nearby
B
far away
C
miles from the object
11.
a _________________is often used in medicine, sound travels from the person to the cup, which increase the volume of the sound. the sound then moves through the tubes to the users ears.
A
microscope
B
stethoscope
C
microphone
12.
concrete listening posts collect and focus sound like a curved mirror. before _____________ it was used to listen for approaching enemy planes.
A
radar
B
maps
C
megaphones
13.
an ___________ testing facility is similar to a wind tunnel. it is used to test vehicles and objects that move through water to make sure they are safe and do not leak. it is also used to model movement through air.
