These four were effects of the Industrial Revolution:
Demand for new markets and raw materials which led to imperialism.
United States, Germany, and Great Britain became industrial powerhouses.
Social and political reform movements sprang up to improve conditions.
Labor unions formed to help improve working conditions.
Futher detail:
The Industrial Revolution had its beginning in Great Britain, and eventually spread from there. Once the United States became involved, the size and resources of the country allowed the US to become a bigger industrial power than the nations of Europe.
Industrial competition not only led to imperialism and imperialistic competition between the nations of Europe. Those forms of competition played a role also in the build-up of tensions that eventually led to the First World War.
