Forces and elasticity

• What does stretching, compressing or bending transfer?

  Energy
• Why do you need more than one force acting on an object?

  because if not, then the object would simply move in the direction of the applied force
• What is Elastic deformation?

  An object has been elastically deformed if it can go back to its original shape and length after the force has been removed
• What is Inelastic deformation?

  An object has been elastically deformed, if it does not go back to its original shape and length after the force has been removed.