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Investigating force versus extension for a spring

Forces and motion • Forces and elasticity

Key concepts

What you'll likely be quizzed about

  • Hooke's Law states that the force exerted by a spring is directly proportional to its extension, as long as the elastic limit is not exceeded.
  • Mathematically, this is expressed as F = kx, where F is the force, k is the spring constant, and x is the extension of the spring.
  • This means that doubling the force applied will lead to double the extension, demonstrating a linear relationship.

Flashcards

Test your knowledge with interactive flashcards

How does a stiffer spring behave under force?

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A stiffer spring has a higher spring constant, requiring more force to achieve the same extension compared to a less stiff spring.

Key notes

Important points to keep in mind

Force is directly proportional to extension in elastic materials.

Always ensure the elastic limit is not exceeded during experiments.

Record measurements accurately to establish reliable data.

Graphs of force versus extension should be linear up to the elastic limit.

Consider environmental factors that may affect spring performance.

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