The ratio of change in configuration to the original configuration is called

Options

A. stress
B. force
C. strain
D. volumetric strain

Explanation

To solve the question, we need to define the term that describes the ratio of change in configuration to the original configuration. Here’s a step-by-step breakdown:

### Step 1: Understand the Concept of Configuration
- Configuration refers to the original state or shape of an object, particularly in terms of its dimensions (length, area, volume).

**Hint:** Think about what happens to an object when it is stretched or compressed.

### Step 2: Define Change in Configuration
- Change in configuration refers to the alteration in the dimensions of an object when a force is applied. This could be an increase or decrease in length, area, or volume.

**Hint:** Consider how stretching a rubber band changes its length.

### Step 3: Ratio of Change to Original Configuration
- The ratio of the change in configuration to the original configuration is expressed mathematically. For example, if we consider length, this can be represented as:
\[ \text{Strain} = \frac{\text{Change in Length}}{\text{Original Length}} \]

**Hint:** This ratio helps quantify how much an object deforms relative to its original size.

### Step 4: Identify the Term
- The term that describes this ratio is known as "strain." Strain is a dimensionless quantity that indicates how much an object has deformed compared to its original configuration.

**Hint:** Remember that strain can be positive (extension) or negative (compression).

### Final Answer
- The ratio of change in configuration to the original configuration is called **strain**.