Physics for IGCSE & O level - Forces And Pressure (Section 5 - No. 43)
When a material is described as 'elastic', what does this mean?
It permanently deforms when a force is applied.
It returns to its original shape after the force is removed.
It breaks easily.
It changes color when force is applied.
คำอธิบาย
Elastic materials return to their original shape after the force is removed.