What is a formula, and how do you read one?
Read d = vt as a relationship between distance, speed and time. One example explains symbols, multiplication, units and the conditions that make a calculation meaningful.
Tag archive
#motion
Articles: 3
What is force, and how does it change motion?
Why does a cart keep moving after a push? Separate force, velocity and acceleration, compare different masses, and see why Newton’s third-law forces do not cancel the motion.
What are motion and speed?
A passenger stands still in a carriage yet moves past the platform. Compare reference frames and distinguish distance, displacement, average speed and average velocity.