The adjustment of interest rates often reflects the trend of national financial policies over a period of time, so when interest rates are raised, stocks usually fall, while a country's interest rates generally rise in foreign exchange. For example, if you look at the Australian dollar's continuous interest rate increase, the Australian dollar has been rising all the way, and the exchange rate with the US dollar is close to 1: 1. But sometimes the change of exchange rate is not only the change of interest rate, but also the influence of some important economic indicators, so I will talk about it here. Gold is related to the dollar. When the dollar falls, gold usually rises, so if the interest rate in the United States falls, it means that when the dollar depreciates, gold will rise, oil will rise and house prices will rise.
The fluctuation of stock can not be simply regarded as the change of stock. Whether it can affect a country's currency really depends on many factors, because it may be caused by major changes in other economic policies. In my opinion, the questions you asked are enough for several books. What I answered you was really the simplest answer, only the most likely answer.