Question

What about a rubber band, can it change its shape? Is it solid?

Answer 1

Hint : The elastic band is taken into account as solid because as we apply force and stretch the elastic band it changes its shape and gets elongated but after releasing the force, it moves back to its original shape. This property of rubber is understood as elasticity.

Complete Step By Step Answer:
Yes, an elastic band can change its shape when a force is applied thereto and may regain its shape when the force is removed. It is solid in nature but upon the appliance of force, the form can change thanks to the elastic nature of the elastic band.
The particles of elastic band are loosely bound by force of attraction, so as we stretch it moves to maximum elastic limit and as soon as it is released it regains its shape, therefore, it's some property of solids.
Yes, it is often classified as a solid. It's an elastic solid which changes its shape on stretching and regains an equivalent when the stretching force is removed.
An amorphous solid may be a solid that lacks an ordered internal structure. samples of amorphous solids include glass, rubber, and plastics. The physical properties of amorphous solids differ from those of crystalline solids.

Note :
The elastic band is solid. On applying force a solid may change its shape as just in case of elastic band . But as soon as the force is removed, it comes back to its original shape. Rubber bands are solid because their molecules are on the brink of each other and perfectly set within the definition of solids.