# AS Physics (Materials)

Flashcards by h.singleton1997, updated more than 1 year ago
 Created by h.singleton1997 over 7 years ago
37
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### Description

Key Words for Materials

## Resource summary

 Question Answer Breaking Stress The lowest stress required to break a material Brittle Doesn't deform plastically, snaps under stress Brittle Fracture When stress is applied, cracks form in the material increasing in size until the material breaks. Compressive Force Compression (squashing) Density Mass per unit volume of a material. Elastic When a material is able to return to it's original shape after forces are applied. Elastic Limit Point at which the material is no longer acting elastically but now plastically. Hooke's Law Extension of a material is directly proportional to the load applied until the limit of proportionality. Hooke's Law Limit Limit of proportionality, point at which a material stops acting elastically.

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