CIRCULAR MOTION ACTIVITY CIRCULAR MOTION ACTIVITY CIRCULAR MOTION

CIRCULAR MOTION ACTIVITY

CIRCULAR MOTION ACTIVITY

CIRCULAR MOTION ACTIVITY From the equation, we can see that the centripetal force is affected by the mass, the tangential speed, and the radial distance. The force is changed if we change the * mass of the object being rotated * how fast the object is moving * and how far away the object is from the center of revolution.

CIRCULAR MOTION ACTIVITY The purpose/objective of this activity is to see how changing each variable in the equation affects the centripetal force. Materials needed will include 1. Activity handouts 2. Meter Stick 3. Yarn 4. Various objects (Paper Clips, Binder Rings, Binder Clips, Large Eraser) 5. Stop watch (Cell Phones, Mobile Devices, or Chrome Books) 6. An open area to conduct the experiment. (Hallway or Classroom)

CIRCULAR MOTION ACTIVITY We will be doing this activity in groups of 4. You may choose your own groups. (A lot of communication is needed. It’s easier to talk to people you know) Make sure everyone in the group has a role. A leader to keep the group on track. A timer to record the time. A recorder to record all the data. A person to count the number of revolutions. Due to the fact that this activity requires your group to work in various places, I may not be able to monitor everyone at the same time. You are expected to stay on task and behave properly especially in the hallway. Be courteous to other classes. I will be moving back and forth to check on your progress. If you have any question, send a member to find me.

CIRCULAR MOTION ACTIVITY There are 4 parts to the activity that has to do with data collection. The time line to complete this is split between Monday and Tuesday. All groups must complete the task by the end of the second day. All groups will present their finding to the class on Wednesday/Thursday. And wrapping up the work with a final summary of the activity with all the calculations and datasheets due by the end of class on Friday.

CIRCULAR MOTION ACTIVITY In order to calculate for the force, we first need to know how to calculate the tangential speed of an object undergoing uniform circular motion.

CIRCULAR MOTION ACTIVITY PART 1: CALCULATING TANGENTIAL SPEED Objective: Calculating the tangential speed. Materials Needed: 1. Activity handouts 2. Meter Stick 3. Yarn 4. Various objects (Paper Clips, Binder Rings, Binder Clips, Large Eraser) 5. Stop watch (Cell Phones, Mobile Devices, or Chrome Books) 6. An open area to conduct the experiment. (Hallway or Classroom)

CIRCULAR MOTION ACTIVITY PART 1: CALCULATING TANGENTIAL SPEED correct Incorrect

CIRCULAR MOTION ACTIVITY PART 2: CHANGING MASS CHANGES THE FORCE

CIRCULAR MOTION ACTIVITY PART 2: CHANGING MASS CHANGES THE FORCE Objective: Show that increasing the mass of the object undergoing uniform circular motion would increase the centripetal force with the other variables were kept constant. Materials Needed: 1. Activity handouts 2. Meter Stick 3. Yarn 4. Various objects (Paper Clips, Binder Rings, Binder Clips, Large Eraser) 5. Stop watch (Cell Phones, Mobile Devices, or Chrome Books) 6. An open area to conduct the experiment. (Hallway or Classroom)

CIRCULAR MOTION ACTIVITY PART 2: CHANGING MASS CHANGES THE FORCE

CIRCULAR MOTION ACTIVITY PART 3: CHANGING TANGENTIAL SPEED CHANGES THE FORCE

CIRCULAR MOTION ACTIVITY PART 3: CHANGING TANGENTIAL SPEED CHANGES THE FORCE Objective: Show that increasing the tangential speed of the object undergoing uniform circular motion would increase the centripetal force with the other variables were kept constant. Materials Needed: 1. Activity handouts 2. Meter Stick 3. Yarn 4. Various objects (Paper Clips, Binder Rings, Binder Clips, Large Eraser) 5. Stop watch (Cell Phones, Mobile Devices, or Chrome Books) 6. An open area to conduct the experiment. (Hallway or Classroom)

CIRCULAR MOTION ACTIVITY PART 3: CHANGING TANGENTIAL SPEED CHANGES THE FORCE

CIRCULAR MOTION ACTIVITY PART 4: CHANGING RADIAL DISTANCE CHANGES THE FORCE

CIRCULAR MOTION ACTIVITY PART 4: CHANGING RADIAL DISTANCE CHANGES THE FORCE Objective: Show that increasing the tangential speed of the object undergoing uniform circular motion would increase the centripetal force with the other variables were kept constant. Materials Needed: 1. Activity handouts 2. Meter Stick 3. Yarn 4. Various objects (Paper Clips, Binder Rings, Binder Clips, Large Eraser) 5. Stop watch (Cell Phones, Mobile Devices, or Chrome Books) 6. An open area to conduct the experiment. (Hallway or Classroom)

CIRCULAR MOTION ACTIVITY PART 4: CHANGING RADIAL DISTANCE CHANGES THE FORCE

CIRCULAR MOTION ACTIVITY PART 5: PRESENTING DATA TO CLASS Once each group have the opportunity to complete their data collection, the group will present their findings to the class. (Peer Review) Students will compare results with other groups to determine the validity of their work.

CIRCULAR MOTION ACTIVITY PART 6: FINAL SUMMARY Each group will write a summary of the activity with all the calculations and explanations of the relationship between the variables of the centripetal force equation. The summary should include the following: The process for calculating the tangential speed. The results from each of the part of the experiment. The feeling (tension) on the yarn as the variables changed. The explanation why values are different in part 2, 3, and 4. The entire packet is due by the end of Friday February 22, 2019.