Unit 1: Movement and forces
400 possible mastery points
About this unitForceful, forcing, "may the force be with you!"—how do scientists define the term "force", and how do forces make things move? Learn how we can define and measure forces and motion to understand how things ranging from grains of sand to entire planets move.
If the Earth rotates at 1000mph, can we ever say we're standing still?
Why is a 500 horsepower truck slower than a 300 horsepower sports car?