2025 - DUE 26 July 2025; 100% correct solutions and
explanations.
QUESTION 1
1.1 Define the following:
a. Particle
A particle is a small portion of matter. In science, it refers to a tiny
unit that makes up all physical substances. The term can apply to
atoms, molecules, or even subatomic components such as electrons,
protons, and neutrons.
Particles can be described in different ways depending on the branch
of science:
In classical physics, particles are treated as small solid objects
with mass and volume that move according to Newton’s laws.
In chemistry, particles can be atoms, ions, or molecules that
react with one another.
In modern physics, particles also include elementary
particles like quarks, leptons (e.g., electrons), and bosons
(e.g., photons), which obey quantum mechanics.
In particle physics, particles may not have a definite size or
structure and are instead considered to have properties like
charge, mass, and spin.
Particles are fundamental to understanding matter, energy, and the
interactions in the universe.