We’ll be doing some video analysis of a rolling ball in Capstone today. Woot woot.

• Rolling ball video
• Falling ball video

For the analysis of the video that you make with your partner:

• Look at the horizontal position vs time graph.
  • What is the general shape of this graph? What does that mean?
  • What is the slope of the line? What does that mean?
• Look at the vertical position vs time graph.
  • What is the general shape of this graph? What does that mean?
• Look at the vertical velocity vs time graph.
  • What is the slope of this graph? What does that mean?

Play the Motion Terminology Self-Test! You must get 10 answers correct in a row. If you get one wrong, you will have to restart the whole thing.

Ok, now try this one: Finding Velocity from Position Graph

Click HERE!!!

https://docs.google.com/spreadsheets/d/11EcecTYdC0JgfxeET0lhj56_6MP1rd-W9CZ2PU743FQ/edit?usp=sharing

Try this old example of finding the net force of three forces at different angles.

https://www.thephysicsaviary.com/Physics/APPrograms/NetForceHard/index.html

Almost like a Quadrant-tester for cell F7:

=IF(AND(D7>0,E7>0),1,IF(AND(D7<0,E7>0),2,IF(AND(D7<0,E7<0),3,IF(E7=0,0,4))))

Updated formula for the resultant angle in cell C7:

=IF(F7=0,0,IF(OR(F7 = 2, F7 = 3), 180 + DEGREES(ATAN(E7/D7)), IF(F7=4, 360 + DEGREES(ATAN(E7/D7)), DEGREES(ATAN(E7/D7)))))

Watt’s Up!!! It’s FRIDAY!

Try these circuit challenges to test your circuit skills.

• Series Circuit
• Parallel Circuit
• Parallel in Series Circuit
• Parallel in Double Series Circuit  (wut?)
• Series in Parallel Circuit

IT”S FRIDAY!!!!!

Working with a buddy, try these two problems:

• Kinetic Energy to Oscillation
• Masses and Springs – TURN FRICTION OFF when running this
  • What is the mass of the Red Mass?
  • What is the mass of the Green Mass?
  • What is the gravitational field strength on Planet X?