This short video was created to demystify the process of the center-seeking centripetal force and how it acts to keep objects moving along a curved path. The video uses footage of a looping roller coaster and a high school student swinging a cup of water around his head without spilling. It's a well-balanced, engaging explanation of what makes a roller coaster rider feel pinned to the seat -- it's not just the seat belt, it's centripetal force pushing the cars downward toward the center of the loop. Resource includes background information and discussion questions.

Teachers' Domain is a growing collection of videos, lessons, and activities assembled by researchers and experienced teachers to promote the use of digital resources in the classroom.

Please note that this resource requires Flash.