All Flashcards
What is the effect of applying a constant torque to an object?
It causes the object to experience angular acceleration.
What happens when angular velocity is constant?
Angular acceleration is zero.
What happens when a rotating object's angular velocity increases?
It experiences positive angular acceleration.
What happens when a rotating object's angular velocity decreases?
It experiences negative angular acceleration.
What is the effect of increasing the radius on linear velocity, given a constant angular velocity?
The linear velocity increases (v = rω).
What is the difference between angular velocity and angular acceleration?
Angular Velocity: Rate of change of angular displacement. | Angular Acceleration: Rate of change of angular velocity.
What is the difference between clockwise and counterclockwise direction in rotational motion?
Counterclockwise (CCW): Usually considered the positive direction. | Clockwise (CW): Usually considered the negative direction.
Compare linear and angular displacement.
Linear Displacement: Change in position along a straight line (meters). | Angular Displacement: Change in angular position (radians).
Compare linear and angular velocity.
Linear Velocity: Rate of change of linear displacement (m/s). | Angular Velocity: Rate of change of angular displacement (rad/s).
Compare linear and angular acceleration.
Linear Acceleration: Rate of change of linear velocity (m/s²). | Angular Acceleration: Rate of change of angular velocity (rad/s²).
How do you convert degrees to radians?
radians = (degrees * π) / 180
How do you calculate angular displacement?
Δθ = θ_final - θ_initial
How do you calculate angular velocity?
ω = Δθ / Δt
How do you calculate angular acceleration?
α = Δω / Δt
How do you relate angular velocity to frequency?
ω = 2πf, where f is the frequency in Hz.