Stress and Strain

What is stress in engineering terms?

• The weight of items pressing down on your hand and arm

• The force applied to an object per unit area

• The deformation of an object under the influence of stress

• The elongation of a material under stress

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How is stress distributed in a bridge supporting the weight of passing cars?

• Evenly across its surface

• Only on one side of the bridge

• At the center of the bridge

• On the edges of the bridge

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What is strain in engineering?

• The force applied to an object per unit area

• The deformation of an object under the influence of stress

• The elongation of a material under stress

• The weight of items pressing down on your hand and arm

How do engineers ensure safety and performance when building a bungee cord?

• Balancing high strain without catastrophic failure

• Reducing stress to increase bounce

• Minimizing strain to avoid deformation

• Increasing stress to improve durability

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What happens to a rubber ball when it experiences stress from colliding with the ground?

• Deforms slightly

• Becomes heavier

• Becomes harder

• Becomes smaller

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What does the ability to handle stress and strain define in a rubber ball?

• Texture and smell

• Color and shape

• Weight and size

• Durability and bounce

What is the main focus of the text?

• Discussing complex equations in engineering

• Exploring stress and strain in everyday life

• Exploring the history of architecture

• Analyzing the behavior of atoms

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NGSS.MS-PS1-1

How are stress and strain described in the text?

• As temporary phenomena in nature

• As unrelated concepts in engineering

• As visible elements in our environment

• As invisible forces shaping the world around us