What is the definition of Young's modulus?
Correct Answer: Young's modulus is the ratio of tensile stress to tensile strain.
- Step 1: Understand that Young's modulus is a property of materials.
- Step 2: Know that it relates to how much a material stretches or compresses when a force is applied.
- Step 3: Learn that 'tensile stress' is the force applied to a material divided by its cross-sectional area.
- Step 4: Understand that 'tensile strain' is the change in length of the material divided by its original length.
- Step 5: Realize that Young's modulus is calculated by dividing tensile stress by tensile strain.
- Step 6: Conclude that Young's modulus tells us how stiff or flexible a material is.
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