All lessons

Each one: a short video, a simulation you can play with, and three questions.

• MOTION · B1 · 001Why cars are built to crumpleSim in build
• MOTION · B1 · 002How your seatbelt knows when to lock
• MOTION · B1 · 003Why rockets speed up as they get lighter
• MOTION · B1 · 004How rockets push with nothing to push onSim in build
• MOTION · B1 · 005Why you feel heavier when a lift startsSim in build