phsyics circular motion

  1. Review notes and definitions (Period, frequency, tangential velocity, centripetal acceleration, centripetal force, directions of forces and velocity).

  2. Be able to calculate centripetal force, acceleration, velocity, period, frequency

  3. Make a free body diagram and identify the source of centripetal force ### Review Notes on Circular Motion 1.

    Period (T): The time taken for one complete revolution around a circular path. Measured in seconds.

    Frequency (f): The number of complete revolutions per unit time, typically measured in Hertz (Hz), where 1 Hz corresponds to 1 cycle per second.

    The relationship between period and frequency is given by:

    Tangential Velocity (v_t): The linear speed of an object moving along a circular path,

    Centripetal Acceleration (a_c): The acceleration directed toward the center of the circular path that keeps an object moving in a circle.

    Centripetal Force (F_c): The net force required to keep an object moving in a circular path, directed toward the center of the circle.

    Centripetal force calculation: using mass and centripetal acceleration. Acceleration: using tangential velocity and radius.

    Velocity: using the radius and angular velocity.

    Period: using the relationship between frequency and period. - Frequency: using the time period of rotation.

    Uniform Circular Motion: This occurs when the speed of the object is constant, but the direction of the velocity vector is changing, resulting in centripetal acceleration.

    Non-uniform Circular Motion**: This involves changes in the speed of the object along with a change in direction, resulting in both tangential and centripetal acceleration.