Unit3H - Multidimensional Motion
Thursday 3/25/21
discussed details of projectile motion ... worked out three common horizontal launch problems
Friday 3/26/21
discussed projectile motion with launches at angles
discuss free response question answers from Unit 2 Exam
discuss types of questions on Midterm
students work on HP4s 2021 (due Sunday night, 3/28, 11:59pm)
Monday 3/29/21
livestream
students took a quiz on one of the three common horizontal launch problems
continued discussing projectile motion with launches at angles
students worked on Unit 3H Practice 1 through 4c
Tuesday 3/30/21
livestream
students took a retake quiz on another of the three common horizontal launch problems
reviewed forces/motion of objects on ramps
discussed variables that affect tension of a dune buggy tethered to a central pole and moving in a circle
net force on objects traveling in circular paths is inward toward the center
net force grows if speed of object moving in a circular path grows
net force grows if object's mass is larger for object moving in a circular path
net force grows if the circular path radius gets smaller
reviewed linearization
students began Pivot Interactives Lab: Exploring Forces in Circular Motion - Reboot
Wednesday 3/31/21
livestream
reviewed variables that affect tension of a dune buggy tethered to a central pole and moving in a circle
net force on objects traveling in circular paths is inward toward the center
net force grows if speed of object moving in a circular path grows
net force grows if object's mass is larger for object moving in a circular path
net force grows if the circular path radius gets smaller
reviewed linearization
students continued and finished Pivot Interactives Lab: Exploring Forces in Circular Motion - Reboot
Thursday 4/1/21
livestream
midterm exam
No Recording Today
Friday 4/2/21
livestream
reviewed results of Pivot Interactives circular motion experiment
determined how fast the dune buggy was going as it was moving in a circle tethered to a pole
defined the concept period, period=time for one cycle
watched this video of three experiments and completed Part 1 of Unit 3-Practice 1
worked out the first part of Part 2 of Unit 3-Practice 1 ... a car goes over a circular mound.
Monday 4/12/2021
reviewed results of Pivot Interactives circular motion experiment
reviewed the concept period, period=time for one cycle and frequency
worked out the second part of Part 2 of Unit 3-Practice 1 ... a car drives through a circular trough
discussed how to measure displacements of circular motions
discussed how to measure speeds of circular motions
discussed how to convert from linear measurements to angular/rotational units and vice versa
discussed how to measure accelerations of circular motions
discussed the different forms for the centripetal force: in terms of m,v, and r; in terms of m,T,r; in terms of m, f, r; in terms of m, omega (w), and r
Tuesday 4/13/2021
discussed how to convert from linear measurements to angular/rotational units and vice versa
discussed how to measure accelerations of circular motions
discussed the different forms for the centripetal force: in terms of m,v, and r; in terms of m,T,r; in terms of m, f, r; in terms of m, omega (w), and r
looked back at the problems we worked mathematically and determined values previously unknown
students worked on Unit 3: Practice 3
students worked on Unit 3: Practice 4
prelab for Whirligig lab
Wednesday 4/14/2021
discussed solutions to Unit 3: Practice 3
discussed solutions to Unit 3: Practice 4
discussed conical penduladiscussed a few more example problems
did a quick review of circular motion
finished prelab for Whirligig Lab
Thursday 4/15/2021
livestream
discussed the physics of the conical pendulum
finished prelab for Whirligig Lab
went outside to conduct Whirligig Lab
Friday 4/16/2021
livestream
finished Whirligig Lab
finished examples from notes
reviewed projectile motion
discussed Unit 3 Exam
Monday 4/19/2021
finished examples from notes
reviewed projectile motion
discussed Unit 3 Exam
Tuesday 4/20/2021
students took Unit 3 Exam
No Recording Today