All Flashcards
What is the difference between angular velocity (ω) and angular acceleration (α)?
Angular Velocity (ω): Rate of change of angular displacement. | Angular Acceleration (α): Rate of change of angular velocity.
Compare clockwise and counterclockwise direction in rotational motion.
Clockwise (CW): Usually considered the negative direction. | Counterclockwise (CCW): Usually considered the positive direction.
Compare angular displacement and arc length.
Angular Displacement: Angle through which an object has rotated. | Arc Length: Distance traveled along the circular path.
Compare linear velocity and angular velocity.
Linear Velocity: Velocity of a point on a rotating object (m/s). | Angular Velocity: Rate of rotation (rad/s).
Compare linear acceleration and angular acceleration.
Linear Acceleration: Rate of change of linear velocity (m/s²). | Angular Acceleration: Rate of change of angular velocity (rad/s²).
Label the diagram illustrating angular displacement.
Arc Length: s, Radius: r, Angle: θ
Label the diagram illustrating the relationship between linear and rotational quantities.
Arc Length: s, Radius: r, Angle: θ, Linear Velocity: v, Angular Velocity: ω, Linear Acceleration: a, Angular Acceleration: α
Define inertial reference frame.
A reference frame where an object at rest stays at rest, and an object in motion stays in motion with constant velocity, unless acted upon by a net force.
Define angular displacement.
The change in angular position, measured in radians.
Define angular velocity.
The rate of change of angular displacement, measured in rad/s.
Define angular acceleration.
The rate of change of angular velocity, measured in rad/s².
Define radian.
The angle where the arc length equals the radius of the circle.