Measurement

//This quote is dedicated to Jake A.// From //The Physics of Superheroes// by James Kakalios "Now, it is all well and good to say that all of the energy (and consequently all of the matter) found in the universe today was present at the moment of the Big Bang. But this only leads to two deeper questions about energy: What is it really? And where did it orginally come from? Science provides the same answer to both questions: Nobody knows." I hope you are enjoying your reading as much as I am... Now on to the homework.

Read through section 1.4 to review significant figures or review at this site [] Read through section 1.3 and 1.5. We will be using dimensional analysis and unit conversions often. The main ones to know are pounds to kilograms, inches to centimeters, miles to kilometers, minutes or hours to seconds, and metric conversions using milli, centi, and kilo. Read through section 1.6 and familiarize yourself with order-of-magnitudes. We will be using these often to double check our calculations. Read through section 1.7. Make sure you understand the Cartesian coordinate system.

Run through "The Scale of the Universe" at [] You will use some of it to answer the questions below.

media type="custom" key="18595804"

This is an older applet called "Powers of Ten" which is similar to "The Scale of the Universe." Not really necessary, but still kind of interesting. []