Angular Motion
How do Linear and Angular Motion Differ?
Angular movement is usually expressed in radians where
1 radian = 57.3°
Direct vs Eccentric Force
How is Angular Motion Created? an Eccentric Force is applied outside a body. The turning effect of an eccentric force is called, moment of force or -------------------------
TORQUE (https://youtu.be/QhuJn8YBtmg) also known as a MOMENT
Torque Equation
Key Terms to UNDERSTAND before moving on: PUT INTO YOUR OWN WORDS
- Angular Distance- when a rotating body moves from one position to another, the angular distance through which it moves is equal to the angular path's length
- Angular Displacement- the angular displacement that a rotating body experience is similar to the angle between the body's initial and final position
- Angular Speed- angular speed of a rotating body is defined as the rate at which angular distance is covered
Avg. Angular Speed = Total Angular Distance/ Total Time
- Angular Velocity- angular velocity of a rotating body is defined as the rate at which angular displacement has occurred
Avg. Angular Velocity = Total Angular Displacement/ Total Time
Key Terms to UNDERSTAND before moving on: PUT INTO YOUR OWN WORDS
- Moment of Inertia- Inertia is a body's tendency to resist acceleration
I = mr²
Where:
I = Moment of Inertia (kg m²)
m = Mass (kg)
r = Radius (m) (shortest distance from the axis of rotation
to the particle)
- Angular Momentum- also known as SPIN, the velocity of rotation of something around an axis
