Physics Notes - Herong's Tutorial Notes - v3.24, by Herong Yang
What Is Speed
This section provides a quick introduction of speed, which is a derived property of a moving object by calculating the distance the object has moved within a single unit of time.
What Is Speed? Speed is a derived property of a moving object by calculating the distance the object has moved within a single unit of time.
The speed of a moving object can be expressed as a formula: v = d/t, where v represents the speed, d represents the distance the object has moved, and t represents the duration of time. The standard units of measure used in this formula are:
v (speed): meter per second (m/s) d (distance): meter (m) t (time): second (s)
For example, to calculate the speed of a running athlete, we can use the following process:
So the speed of the running athlete is v = 10 m/s.
Table of Contents
Introduction of Frame of Reference
Different Speeds Observed in Different Frames
Measuring Speed of Light - Roemer's Method
Measuring Speed of Light - Fizeau's Method
Measuring Speed of Light - Foucault's Method
Introduction of Special Relativity
Time Dilation in Special Relativity
Length Contraction in Special Relativity
The Relativity of Simultaneity
Minkowski Spacetime and Diagrams
Introduction of Generalized Coordinates