Lecture Notes

New Guidelines for Exposure and Classes

• Definition of Exposure:
  • Exposure is defined as being within 6 feet for 15 minutes or more, mask-wearing is irrelevant.
  • Entire classroom may need contact tracing if one is exposed.
• Class Adjustments:
  • Classes will continue online via Blackboard Collaborate.
  • Lab sessions require rearrangement:
    • Only 6 people in lab at a time.
    • Labs conducted every four weeks, two labs per session.
    • Alphabetical scheduling for lab attendance.

Lecture and Lab Plans

• Lectures:
  • Pre-recorded and available later; live attendance not required.
• Lab Guidelines:
  • One student per lab station.
  • Rescheduling necessary, list not yet made.
• Test Information:
  • Test date: September 3rd, next on September 17th.
  • 75-minute window for completion on test day.
  • LockDown Browser required for taking tests.

Test Preparation

• Topics Covered:
  • Constant velocity vs. acceleration.
  • Gravity's effect on acceleration and velocity.
  • Examples of motion and forces (e.g., free fall, rock on string).
• Key Concepts:
  • Inertia, friction, equilibrium.
  • Differences between speed and velocity.
• Study Materials:
  • Use textbook questions, answers provided for odd-numbered questions.
  • Review past term's test materials if applicable.

Physics Concepts Reviewed

• Acceleration & Forces:
  • Constant acceleration in free fall.
  • Air resistance affecting acceleration.
  • Vector and scalar quantities (e.g., velocity is a vector, speed is scalar).
• Newton's Laws:
  • Basic applications and implications for mass and acceleration.
• Circular Motion:
  • Constant speed but changing velocity due to changing direction.

Sample Problems and Solutions

• Free Fall & Circular Motion:
  • Calculating acceleration due to gravity.
  • Understanding changes in velocity and direction.
• Equilibrium and Forces:
  • Static and dynamic equilibrium.
  • Net force calculations and implications for motion.
• Additional Examples:
  • Effects of mass on acceleration and motion.
  • Analysis of forces in real-world applications (e.g., braking distances).

Additional Information

• Administrative Interruptions:
  • Issues with Blackboard and course material updates discussed.
  • Support tickets filed for technical issues during the lecture.
• Final Remarks:
  • Email instructor for questions or clarifications.