Forces and elasticity 5.3 Flashcards

1
Q

Explain the relationship between the force applied and the extension of an elastic object

A

The extension is directly proportional to the force applied, provided that the limit of proportionality is not exceeded

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2
Q

What is meant by elastic deformation?

A
  • A deformation which results in the object being permanently stretched
  • The object doesn’t return to its original shape when the force is removed
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3
Q

State the equation relating force, spring constant and extension. Give appropriate units.

A

Force = Spring constant x extension

Force (N), Spring constant (N/m), Extension (m)

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4
Q

What type of energy is stored in a spring when it is stretched?

A

Elastic potential energy

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5
Q

What can extension be replaced with in the equation for spring force?

A

Compression

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