# Physics 11-3-20 Friction & Normal Force

PHYSICS: Why don’t things that are moving just keep moving? Here is our intro on friction from today. And don’t forget – net forces produce acceleration.

You can find Ff a couple of different ways – it’ll be part of a net force equation and can be found from the coefficient of friction equation. If and ONLY if your object is moving at a constant velocity, Ff will equal Fa. Fn is only sometimes equal to Fw. If your object is pulled at any angle (or pushed), Fn will be a part of Fnet in the vertical direction.

Whew! π

# Hon Chemistry 11-3-20 Chemical Formulas with Polyatomic Ions

HON CHEMISTRY: Great job today! Remember it’s like baby steps, first binary ionic compounds, and now, formulas with polyatomic ions. Begin learning them now! And practice, practice, practice!!

Another great idea, click here for a copy of the Hints for Naming Chemical Formulas Flow Chart, or find it under the Worksheet/Handouts Tab. Follow it every time you name chemical formulas!!

# Chemistry 11-3-20 Graphing Exercise 1

CHEMISTRY: Today you will begin Graphing Exercise 1. Don’t forget if you get stuck, you can always go back and watch the videos below.

Here are the instructions for Tuesday – (You are going to be dreaming about graphs!!)

IMPORTANT: A rough draft of your first graph (graph J) is due tomorrow by class time. The entire assignment must be submitted by this coming Friday, November 6, 8:00 A.M.

You can do this assignment at school or at home with your own computer. If you use any device other than a PC or any graphing tool other than Excel or Google Sheets, you may need to modify the instructions to fit your device.

1. When you begin working on the Graphing Exercise 1 assignment, pay very close attention to the instructions. Also, pay close attention to the sheet on How to Make a Best Fit (Scatter Plot) Line Graph in Excel 2010 – UPDATED to make sure you have all the parts of the graph covered.

4. Google Sheets only: If you ever need to add subscript or superscripts to the axis labels in Google sheets, try copying and pasting whatever number you need from this set in to the axis title in Google sheets: β°ΒΉΒ²Β³β΄β΅βΆβ·βΈβΉββββββββββ

Now go forth and conquer graphs!!

Excel Graph Tutorial Below (older version of Excel)