Timestamp#1: We’re back!! It’s going to be a great season. Next year . . . victory over those Mangy Dogs

Timestamp#2: Hurricane Irma is making herself known

I went ahead and included screenshots from the first week in this slide show because the slides I included last week were from previous years. These are the actual screen shots from this year.

Everything is in motion.

The Luminous Aether (British spelling) was proposed as the ultimate reference point and a medium for light and heat transfer from sun to Earth by Isaac Newton in 1718. Turns out it doesn’t exist. Michelson and Morley (Americans) did a series of very expensive series of interferometer experiments in Cleveland Ohio in 1887 and basically proved that the aether isn’t a thing.

So we have to use this crazy definition of motion

When we went to the West Lawn, I had to switch to south being positive. Usually this isn’t the case.

Speed is a scalar, Velocity is a vector.

Vector addition is weird because you are adding arrows

See . . . 3 + 4 DOES equal 5.

Our first kinematic equation!

just plain old x is position. âˆ†x is displacement. the âˆ† means “change in” .

1.1.7

1.1.7 We did this on the board.

1.1.7

1.1 . trial 4

The blue is the plot of trial 4

1.1 Trial 5

more details of trial 5

The three dimensional graph of trial 5 (Here are the 3 dimensions: x, z and time.

From the homework 1.2.4

Homework 1.2.5

The follwong are from class discussion of the Metric Game (Sheet 1.3)

We talked about the fast speed possible (speed of light). We talked about the smallest distance possible (Plank Length)

Rule: Use no more than 5 leading or trailing zeros. When there is more than that use scientific notation.

From 1.4.3 . (We marked out 1.4.1 and 1.4.2)

1.4.3 worked out

1.4.4 worked out. You can find a help video of this problem on the Physics Facebook group and on the help video section of this website

When you are asking a question about a Take Home Test or Quiz problem, show the problem this way so other students can find it on the facebook group.

If I have time (or remember), I will add a pic or two at the beginning of each archived week to act as a time stamp.

Hurricane Harvey: This dude is attempting to receive a Darwin Award.

I will rely on previous years student notes because to tell you the truth, you do a better job than I do presenting the material.

We talked about the sun orbiting around the center of the Milky Way.

Good to print out and tape in your notebook.

Very important screen shot.

Enter the RED EQUATION!

Don’t be a liar. Too many digits misrepresent your data.

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Coefficients don’t have units because they came from a mathematical derivation of the equation. In other words, the coefficient wasn’t something you measured with an instrument so it is infinitely accurate.

GREAT student notes.

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1.1.7

1.1.7 Sample data

1.1.7 Sample data

Here is another example. I think I put this one on the 1st quiz last year.

I need to make sure that ALL classes talk about this today.