Question

The property of solids to expand and contract is used to fit a metal rim on the wooden wheel of a cart. Explain

Answer 1

The answer to this is the concept of expansion due to heat when an metal body is heated the size increases due to the molecules of the body move around rapidly making the size increase and when a tire needs to be fitted on the rim of an wooden tire the metal part is heated so it expands then put on the wood after sometime due to cooling it’s size decreases and it perfectly fits the rim