Lesson Plan

Define, describe, and differentiate the four fundamental forces — gravity, electromagnetism, the weak nuclear force, and the strong nuclear force

Rank the four forces by relative strength and range, and explain why gravity is the weakest despite being the most familiar

Describe carrier particles and explain how their exchange transmits a force between particles

Identify the carrier particle for each fundamental force and relate carrier mass to the force's range

Explain how particle accelerators create new matter from energy and describe the major accelerator designs

23.1

"These four basic forces are known as fundamental because they alone are responsible for all observations of forces in nature. The four fundamental forces are gravity, electromagnetism, weak nuclear force, and strong nuclear force." "That said, gravity is incredibly weak compared to the other fundamental forces and is the weakest of all of the fundamental forces." "Yukawa proposed that the nuclear force is actually transmitted by the exchange of particles, called carrier particles, and that what we commonly refer to as the force's field consists of these carrier particles." "The fundamental process in creating unknown particles is to accelerate known particles, such as protons or electrons, and direct a beam of them toward a target. ... If the energy of the incoming particles is large enough, new matter can even be created in the collision."