What happens if you don't jump in checkers and instead move a piece that could have made a jump?

If you do not jump in checkers when you have the opportunity to do so, it is considered a missed opportunity and you must make the jump. This rule is known as the "forced capture" rule in checkers, where if you have a piece that can make a jump, you must do so. Failure to do this can result in penalties or consequences in the game.