Greenwood press

48
INVERSE SQUARE FUNCTION

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cause we found blood spatters on the wall in the bedroom. Measuring the num-
ber of splatters in a square meter, we used the inverse square law to determine
that a high-velocity bullet passed through the victim 1.7 meters from that wall.
Analysis of droplet angles confirmed our estimate.”
online sources for further exploration
Summary from the Jet Propulsion Laboratory



Physics examples and lessons


Universal law of gravitation

Simple experiments 



Astrophysics



Basic notions of celestial mechanics

Darkness outside of a campfire

Electromagnetic radiation

How light works

Simulated ocean dive

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LINEAR FUNCTIONS
A linear function is a function that has a constant change in the dependent
variable for every change in the independent variable. For example, the value of
the dependent variable 
y in the linear function y = 5x
− 2 will always increase
by five units for every increase in one unit of the independent variable, 
x. This