Answer:
Tech: radio, cars, movies, phones
Step-by-step explanation:
How it changed things:
Silent movies were created around this time, which led to the invention of the movie theater. Then in 1927, sound was introduced.
Cars were more available to the public, and many people would buy one just to drive around, which was considered fun.
The radio allowed people to listen to music from home, as well as listen to the various radio shows that began around this time. The radio would also play news and sermons.
Telephones had been invented, allowing people to contact each other from far away for the first time.