Final answer:
In physics, key durability refers to the ability of a physical or mechanical key to withstand repeated use without breaking or wearing out.
Step-by-step explanation:
Key Durability in Physics
In physics, key durability can refer to the ability of a physical or mechanical key to withstand repeated use without breaking or wearing out. The responsibility for ensuring key durability lies with the material properties and design of the key itself, as well as the external factors that it is subjected to.
For example, a key made of a strong and durable material like steel will generally have a higher durability compared to a key made of a weaker material like plastic. Additionally, the design of the key, including factors like the shape and size of the key teeth, can also influence its durability. External factors like the frequency and force of key usage can also affect its durability.