Forces and elastic

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

The extension is directionally proportional to the force applies provided that the limit of proportionality is not exceeded

What is meant by inelastic (plastic) deformation

• A deformation which results in the object being permanently stretched

• The object doesn’t return to its original shape when the force is removed

Date the equation relating for spring continental extension give appropriate units

Force (N) = Spring Constant (N/m) x Extension (m)

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

Elastic potential energy

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

Compression