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Anatomy > BioChemi > Flashcards

BioChemi Flashcards

1
Q

What is elastic strength?

A

The ability of a material to return to its original shape after the removal of a load.

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2
Q

What is plastic strength?

A

The ability of a material to undergo permanent deformation without breaking.

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3
Q

True or False: Elastic strength is associated with reversible deformation.

A

True

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4
Q

True or False: Plastic strength occurs before the yield point of a material.

A

False

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5
Q

What is the yield point?

A

The stress at which a material begins to deform plastically.

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6
Q

Fill in the blank: The region of a stress-strain curve where the material returns to its original shape is known as the __________ region.

A

elastic

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7
Q

What does the term ‘modulus of elasticity’ refer to?

A

A measure of a material’s stiffness or resistance to elastic deformation.

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8
Q

Which type of strength is typically measured using a tensile test?

A

Both elastic and plastic strength.

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9
Q

What is the main difference between elastic and plastic deformation?

A

Elastic deformation is reversible, while plastic deformation is permanent.

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10
Q

Multiple choice: Which of the following materials is most likely to exhibit high elastic strength? A) Rubber B) Steel C) Clay

A

B) Steel

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11
Q

What happens to a material that exceeds its elastic limit?

A

It will experience plastic deformation.

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12
Q

True or False: All materials exhibit both elastic and plastic strength.

A

False

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13
Q

What is the term for the ratio of stress to strain in the elastic region?

A

Young’s modulus.

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14
Q

Fill in the blank: Materials that do not return to their original shape after deformation are said to have __________ strength.

A

plastic

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15
Q

What is a common application of materials with high elastic strength?

A

Springs and shock absorbers.

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16
Q

Multiple choice: Which of the following is a characteristic of plastic strength? A) It allows for recovery after stress B) It leads to permanent change C) It occurs at low temperatures

A

B) It leads to permanent change

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17
Q

What is the significance of the area under the stress-strain curve?

A

It represents the toughness of the material.

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18
Q

True or False: The plastic region of a stress-strain curve is linear.

A

False

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19
Q

What type of test is often used to determine the plastic strength of a material?

A

Tensile test.

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20
Q

Fill in the blank: The transition from elastic to plastic behavior occurs at the __________ point.

A

yield

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21
Q

Which material is likely to have low plastic strength?

A

Glass.

22
Q

True or False: Ductile materials exhibit both elastic and plastic behavior.

A

True

23
Q

What is the primary factor that influences the elastic strength of a material?

A

The material’s composition and structure.

24
Q

Multiple choice: Which property is more relevant for structural applications: A) Elastic strength B) Plastic strength C) Both

A

C) Both

25
Q

What does the term ‘plasticity’ refer to?

A

The capacity of a material to undergo permanent deformation.

26
Q

Fill in the blank: The stress-strain curve for a ductile material shows a significant __________ after the yield point.

A

plastic region

27
Q

What is elastic strength?

A

The ability of a material to return to its original shape after the removal of a load.

28
Q

What is plastic strength?

A

The ability of a material to undergo permanent deformation without breaking.

29
Q

True or False: Elastic strength is associated with reversible deformation.

A

True

30
Q

True or False: Plastic strength occurs before the yield point of a material.

A

False

31
Q

What is the yield point?

A

The stress at which a material begins to deform plastically.

32
Q

Fill in the blank: The region of a stress-strain curve where the material returns to its original shape is known as the __________ region.

A

elastic

33
Q

What does the term ‘modulus of elasticity’ refer to?

A

A measure of a material’s stiffness or resistance to elastic deformation.

34
Q

Which type of strength is typically measured using a tensile test?

A

Both elastic and plastic strength.

35
Q

What is the main difference between elastic and plastic deformation?

A

Elastic deformation is reversible, while plastic deformation is permanent.

36
Q

Multiple choice: Which of the following materials is most likely to exhibit high elastic strength? A) Rubber B) Steel C) Clay

A

B) Steel

37
Q

What happens to a material that exceeds its elastic limit?

A

It will experience plastic deformation.

38
Q

True or False: All materials exhibit both elastic and plastic strength.

A

False

39
Q

What is the term for the ratio of stress to strain in the elastic region?

A

Young’s modulus.

40
Q

Fill in the blank: Materials that do not return to their original shape after deformation are said to have __________ strength.

A

plastic

41
Q

What is a common application of materials with high elastic strength?

A

Springs and shock absorbers.

42
Q

Multiple choice: Which of the following is a characteristic of plastic strength? A) It allows for recovery after stress B) It leads to permanent change C) It occurs at low temperatures

A

B) It leads to permanent change

43
Q

What is the significance of the area under the stress-strain curve?

A

It represents the toughness of the material.

44
Q

True or False: The plastic region of a stress-strain curve is linear.

A

False

45
Q

What type of test is often used to determine the plastic strength of a material?

A

Tensile test.

46
Q

Fill in the blank: The transition from elastic to plastic behavior occurs at the __________ point.

A

yield

47
Q

Which material is likely to have low plastic strength?

A

Glass.

48
Q

True or False: Ductile materials exhibit both elastic and plastic behavior.

A

True

49
Q

What is the primary factor that influences the elastic strength of a material?

A

The material’s composition and structure.

50
Q

Multiple choice: Which property is more relevant for structural applications: A) Elastic strength B) Plastic strength C) Both

A

C) Both

51
Q

What does the term ‘plasticity’ refer to?

A

The capacity of a material to undergo permanent deformation.

52
Q

Fill in the blank: The stress-strain curve for a ductile material shows a significant __________ after the yield point.

A

plastic region

Anatomy (4 decks)

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