Weight Definition

Learning about weight and gravity helps us know why things fall down and how everything in the universe moves. Astronauts need to understand this to move and work in space where there is no gravity. People like construction workers and window washers need to know about weight and gravity to stay safe while working up high.

This knowledge is also important for people who design spacecraft and study space, like aerospace engineers and astronomers. They use this understanding to make spacecraft do special moves in space, like using a planet’s gravity to speed up. Gravity and weight are important for many jobs and in our daily lives.