Question

In what ways did interchangeable parts and mass production affect industry in the United States?

Answer 1

mass production = made most products way cheeper
Interchangble parts= if your blank gets old now you don't ave to get a new one

Answer 2

Rather than taking time and effort for expert craftsmen to create long-lasting and expensive goods, companies in the US could now create products of a lesser quality by the thousands daily in huge factories, and they could charge for products which would consequently last less as well. It was technically good for the economy when looked at from a monetary perspective, though consumers may see it as a bad thing since the products aren't as well-made.
Hope that I helped!