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Technology, Ch. 4-Materials
Test Description: Technology
Instructions: Answer all questions to get your test result.
1) Material size, density, porosity and surface texture refer to what properties
A
physical
B
thermal
C
chemical
D
mechanical
2) Which properties control how a material reacts to heat or cold?
A
thermal
B
mechanical
C
chemical
D
physical
3) What properties include strength, elasticity, plasticity, hardness, toughness, or fatigue
A
chemical
B
mechanical
C
physical
D
thermal
4) The properties that refer to a material's reaction to light are __________.
A
acoustical
B
magnetic
C
electrical
D
optical
5) How materials react to sound waves refers to what properties?
A
electrical
B
acoustical
C
magnetic
D
optical
6) Acids taste ____________.
A
bitter
B
sour
C
semi-sweet
D
sweet
7) Acids fall in the range of ___________.
A
7 to 14
B
7
C
14
D
0 to 7
8) Bases taste ________________ and are _______________.
A
semi-sweet, dry
B
sour, dry
C
bitter, slippery
D
sweet, slippery
9) Bases fall in the range of _________________.
A
7
B
15 to 22
C
0 to 7
D
7 to 14
10) A ph of 7 is _______.
A
basic
B
neutral
C
alkaline
D
acidic
*select an answer for all questions
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