Types Of Materials Flashcards

1
Q

What is a resistant material?

A

A material that requires force in order to be worked or shaped

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2
Q

Why is understanding the properties of materials important for designers and engineers?

A

It helps them select from a wide range of materials to suit product specifications

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3
Q

What is the study of Resistant Materials concerned with?

A

The structural, functional, and aesthetic properties of woods, metals, plastics, ceramics, and composites

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4
Q

What are the major categories of physical properties of materials?

A
  • Mechanical
  • Electrical
  • Chemical
  • Thermal
  • Magnetic
  • Permeability
  • Aesthetic
  • Tactile
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5
Q

How do mechanical properties affect material behavior?

A

They describe how material reacts to physical forces

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6
Q

What is an example of a mechanical property?

A

Brittleness: material becomes brittle when repeatedly flexed or bent

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7
Q

What does electrical property refer to in materials?

A

The conductive property of insulation and conductivity of electricity

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8
Q

Fill in the blank: A ferrous metal ______ when exposed to oxygen.

A

rusts

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9
Q

What does thermal property describe?

A

How material responds to different temperatures, such as melting and boiling points

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10
Q

True or False: All materials are magnetic.

A

False

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11
Q

What does permeability refer to in materials?

A

The degree to which liquids or gases can pass through a material

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12
Q

What are aesthetic properties of materials?

A

Visual sensory properties of surface and form, such as color and shine

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13
Q

What are tactile properties?

A

Touch or sensory properties of a material, such as texture or scent

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14
Q

What does hardness measure in mechanical properties?

A

Resistance to scratching, cutting, and wear

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15
Q

Define elasticity in terms of material properties.

A

The ability to return to its original shape after being deformed

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16
Q

What is malleability?

A

The ability to be easily pressed, stretched, and hammered into shapes

17
Q

What does ductility refer to?

A

The ability to be stretched without breaking

18
Q

Fill in the blank: Toughness is the ability to resist ______, bending, or deforming.

A

breaking

19
Q

What is meant by compressive strength?

A

The ability to stay strong under pressure

20
Q

What is tensile strength?

A

The ability to stay strong when stretched

21
Q

What happens to the structure of metal when work hardening occurs?

A

It alters as a result of consistent hammering or strain

22
Q

Define plasticity in materials.

A

The ability to permanently change shape or form

23
Q

What factors are considered when selecting materials?

A
  • Function
  • Condition
  • Physical properties
  • Working properties