Uniform circular Motion

Измаилов Данияр Муратпекович
г. Астана, школа-лицей «NURORDA»
3570
Физика
Тема:
Uniform circular Motion

Learning aims

  • Learn to make a connection between theory and practice
  • Empower the students through providing new technical knowledge and practical skills related to Mechanics
  • Improve and consolidate science English vocabulary
  • Learn to solve complex problems that are combination of two or more different topics (in our Schumacher’s problem we combine Circular motion (Kinematics) and Dynamics)

Learning objectives

  • Apply Uniform Circular Motion in daily life by the solving Schumacher (F1 racer) problem after self-recorded video
  • Distinguish two different terms like Period and Frequency by watching an interactive presentation from Bilimland.kz source (School Subjects – Physics – Upper Secondary – Kinematics – Circular motion)
  • Differentiate tangential and angular speeds by watching an interactive presentation from Bilimland.kz source (School Subjects – Physics – Upper Secondary – Kinematics – Circular motion)
  • Review difference of two different speeds (tangential and angular) by practising on interactive presentation from Bilimland.kz source (Physics course – Mechanics – Kinematics – Angular velocity. Angular acceleration)
  • Identify suitable formulas to solve problems related to the topic, demonstrated by the ability to solve at least 2 or 3 workbook problems in a period of 10 minutes
  • Translate specific physics terminology related to Circular motion by working with hand-outs and training vocabulary with teacher

Previous learning (background)

Students already know the Uniform Circular Motion and the main concepts of Dynamics from 9th grade. 

Plan

Time

Content and teacher activity

Learner activity

Formative assessment (On-going assessment)

Learning materials and resources

5

Explaining a task - revision of first two lessons (motion in one and two dimensions) and playing crossword game

 

Working in groups of 4.

Solving crossword (Appendix A)

Finding Key word to guess lesson topic

Observing pupils’ work and results during crossword activity

Q&A

 

Projector, Ipad, activity papers, smart board

5

Schumacher (F1 racer) video (teacher records)

Note: Schumacher is the crossword Key word. Schumacher’s problem is he crashed when passing a turn; find the optimum speed to help him

Watching and guessing the name of new topic in groups

Q&A

 

Projector, Ipad, smart board, video - https://www.youtube.com/watch?v=NulD8sBZWA0&t=3s

12

Presenting interactive presentation about uniform circular motion, giving hand-outs with new terminology (revision of 9th grade) (Appendix B)

Watching presentation (Appendix C) and taking notes, solving examples, using hand-outs with new vocabulary

Observation, Q&A (training terminology)

 

Projector, smart board, PPP from Bilimland.kz (School Subjects – Physics – Upper Secondary – Kinematics – Circular motion) https://bilimland.kz/en/courses/school-subjects/physics/upper-secondary/2-kinematics/lesson/10-circular-motion

Bilimland

8

Solving problems at the blackboard after some solved examples by teacher (Appendix D)

Working individually and asking for clarification on unclear aspects

Checking results of solved problems by pupils at the blackboard

 

White board, workbook, teacher’s PPP

6

Solving more interactive problems in order to learn the difference between angular and tangential speeds (Appendix E)

Watching and taking notes, solving examples

Q&A

 

Projector, smart board, PPP from Bilimland.kz (Physics course – Mechanics – Kinematics – Angular velocity. Angular acceleration) https://bilimland.kz/en/courses/physics-en/mechanics/kinematics/lesson/angular-velocity-angular-acceleration

2

Demonstration of circular motion by rotating a bucket filled with water in it in order to explain centripetal force

Watching and discussing in pairs

Q&A

 

Bucket, water, rope

5

Finally solving Schumacher’s problem of finding optimum speed to pass the turn safely (Appendix F)

 

Working in pairs and trying to find optimum speed by taking necessary information from teacher’s PPP

Q&A, observation

 

 

Projector, smart board, PPP with information of car and road properties (coefficient of friction, radius of turn, mass of the car, gravity)

2

Giving homework: problems from their workbook, find and show one exclusive, extraordinary example from real life of circular motion (Appendix G)

Taking notes, listening

Checking homework (next week)

Projector, smart board, workbook

Break time

Feedbacks

Giving feedbacks to the teacher by writing their comments on stickers and stick them on a board

Receiving feedback stickers

Stickers, board

 

 

APPENDIX A

Uniform circular Motion - 1

 

QUESTIONS

 

1. How do we call change of the position from initial to final position?

2. What is the vector quantity of the speed?

3. Ep=mgX, what is X in formula?

4. Vavg=dX/dM, what is M in formula?

5. The ratio of the change in velocity to the time interval

6. A group of quantities that has only magnitude

7. Acceleration is _________ quantity

8. How do we call maximum distance that is covered by the object by a projectile?

 

APPENDIX B

TERMINOLOGY

#

WORD

TRANSLATION

1

Period

Период

2

Frequency

Частота

3

Tangential speed (linear speed)

Тангенциальная скорость (линейная скорость)

4

Angular speed

Угловая скорость

5

Centripetal force

Центростремительная сила

6

Revolution

Оборот

7

Centripetal acceleration

Центростремительное ускорение

8

Circumference

Длина окружности

9

Uniform circular motion

Равномерное круговое движение

 

APPENDIX C

Uniform circular Motion - 2Uniform circular Motion - 3

 

APPENDIX D

 

Uniform circular Motion - 4Uniform circular Motion - 5

APPENDIX E

Uniform circular Motion - 6Uniform circular Motion - 7

APPENDIX F

  • Normally, we consider the tire friction with a dry road being 0.8
  • Most F1 cars weigh around 1,300 pounds with the driver
  • Radius of curvature is 25 meters
  • Gravity take as 9,8 m/s2

APPENDIX G

Uniform circular Motion - 8Uniform circular Motion - 9

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