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Physics Unlocked: From Zero to a Physics Hero
Rating: 4.5 out of 5(2 ratings)
646 students

Physics Unlocked: From Zero to a Physics Hero

Circular Motion : Exploring the Dynamics of Objects in Circular Paths
Last updated 7/2025
English

What you'll learn

  • Define and use angular measures such as radians, angular velocity, and angular acceleration to describe rotational motion.
  • Explain the relationship between linear and angular quantities, including how linear speed depends on radius and angular velocity.
  • Apply the equations of circular motion to solve problems involving centripetal acceleration, centripetal force, and motion in a circle.
  • Analyze real-world examples of circular motion by identifying forces and motion characteristics involved.

Course content

5 sections18 lectures41m total length
  • Welcome1:29

Requirements

  • Basic Algebra Skills: Learners should be comfortable with rearranging equations and using formulas.
  • Understanding of Newton’s Laws of Motion: A foundational grasp of force, mass, and acceleration is essential for understanding circular dynamics.
  • Familiarity with Linear Motion Concepts: Concepts such as velocity, acceleration, and displacement from straight-line motion will carry over into circular motion.
  • Basic Trigonometry (Desirable but not essential): Some understanding of angles (degrees and radians), sine, and cosine will help but is not strictly required—key ideas will be reviewed.

Description

In this course on circular motion, we’ll start by understanding the concept of angular displacement and how it’s measured using radians—a fundamental step in analyzing rotational movement. You’ll then explore the key features of uniform circular motion, where an object travels at constant speed along a circular path, and learn why this results in continuous acceleration due to changing direction.

We’ll break down the connection between angular quantities like angular velocity and angular acceleration, and their linear counterparts, giving you a complete picture of how motion in a circle relates to motion along a line. You’ll also examine the role of period and frequency in circular systems, which are vital for describing how fast objects complete their rotations.

Next, we’ll investigate the physics behind the motion by introducing centripetal acceleration and centripetal force—those invisible agents that keep objects from flying off their circular paths. Throughout the course, you’ll learn, prove and apply equations, interpret diagrams, and solve problems to deepen your understanding and practice the calculations.

By the end, you’ll have a solid grasp of the mechanics behind circular motion, preparing you to tackle more complex rotational dynamics and appreciate the role this motion plays in natural and engineered systems alike.

Who this course is for:

  • Students preparing for University entrance exams (British or American Curriculum, IB)
  • Anyone who is interested in developing and extending their knowledge in Physics