Technology, Chapter 4 Question Preview (ID: 44703)
Materials Test.
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the characteristics of a material that allow it to withstand applied forces
a) physical properties
b) mechanical properties
c) chemical properties
d) thermal properties
control how a material reacts to heat or cold
a) mechanical properties
b) thermal properties
c) physical properties
d) composite properties
Determine whether a material is a conductor or an insulator.
a) physical properties
b) mechanical properties
c) thermal properties
d) electrical properties
Determine whether or not a material will be attracted to a magnet.
a) electrical properties
b) magnetic properties
c) physical properties
d) mechanical properties
A materials reaction to light.
a) thermal properties
b) optical properties
c) chemical properties
d) physical properties
Control how a material reacts to sound waves.
a) electrical properties
b) physical properties
c) acoustical properties
d) mechanical properties
__________________ are used to replace natural body parts because the body does not reject them.
a) nanomaterials
b) smart materials
c) biomaterials
d) bioplastics
affect how a metal reacts to its surroundings
a) composite surroundings
b) thermal properties
c) chemical properties
d) physical properties
Materials that can be designed to respond to environmental stimuli are called ________________.
a) nanomaterials
b) smart materials
c) biomaterials
d) composites
Thermoset plastics __________________.
a) can be heated only once
b) have good heat resistance
c) Both A and B
d) Neither A nor B
Which of the following is not true of plastics?
a) Plastics are good insulators.
b) Plastics resist corrosion.
c) Plastics can be molded easily.
d) Plastics have high mass (weight)
A ferrous metal or alloy contains _________________.
a) copper
b) iron
c) tin
d) zinc
Which of the following is not an example of a manufactured board?
a) hardboard
b) particle board
c) plywood
d) hardwood
Carbon dioxide is absorbed through the leaves of a tree and converted into nutrients in a process known as ________________.
a) alloying
b) photosynthesis
c) corrosion
d) expansion
Which of the following is a primary material?
a) glass
b) iron ore
c) plastic
d) cement
Which of the following is an example of a softwood?
a) glass
b) maple
c) oak
d) pine
Which of the following is not a mechanical property of materials?
a) texture
b) strength
c) plasticity
d) hardness
The strength of a material is its ability to ___________________.
a) resist corrosion
b) transmit sound energy
c) conduct electricity
d) withstand a mechanical force
_______________ properties control how a material reacts to heat or cold.
a) Thermal
b) Physical
c) Optical
d) Chemical
given a material its size, density, porosity, and surface texture
a) mechanical properties
b) chemical properties
c) physical properties
d) composite properties
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