PHYA11H3 Chapter Notes - Chapter 12: Acceleration, Rotational Energy, Angular Velocity
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PHYA11H3 Full Course Notes
Verified Note
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Document Summary
Ignore sections 12. 2 and 12. 4 (they are heavy on integrations). 12. 10 and 12. 11 will be touched upon lightly, so don"t ignore it, but do not focus on those sections either. Rigid bodies that rotate wheels, gears, gyroscopes. Torque and angular acceleration are rotational analogues of force and acceleration. Extended object a system of particles for which the size and shape do make a difference and cannot be neglected: vs. The rigid-body model a really simplified model of an extended objected: atoms are modeled as particles, molecular bonds are modeled as rigid, massless rods. 3 types of motion of a rigid body: translational motion the object as a whole moves along a trajectory but does not rotate, rotational motion the object rotates about a fixed point. Every point on the object moves in a circle: combination motion an object rotates as it moves along a trajectory. Angular velocity is the rotational equivalent of velocity.
