AP Physics Torque
Rotational motion - ANS-motion of an object around a fixed line called the axis of rotation or
around a fixed point called the pivot
What kind of force causes a wheel to spin? - ANS-Force that does not go through the pivot
An object will only rotate/spin if ____________ is applied - ANS-torque
Torque equation - ANS-
angular velocity (omega) - ANS-how fast an object is spinning,
omega=change in radians/sec
angular acceleration (alpha) - ANS-change in omega/ change in time
relationships between velocity and acceleration - ANS-v=rxomega
a=rx alpha
Moment of Inertia/rotational inertia (I) - ANS-mass of the object and how far from the pivot the
mass is concentrated
I equation - ANS-I=kmr^2
angular momentum (L) equation - ANS-L=Ixomega
Objects are in static equilibrium if: - ANS-1. Net force in x and y direction is 0
2. Net torque is 0
Rotational motion - ANS-motion of an object around a fixed line called the axis of rotation or
around a fixed point called the pivot
What kind of force causes a wheel to spin? - ANS-Force that does not go through the pivot
An object will only rotate/spin if ____________ is applied - ANS-torque
Torque equation - ANS-
angular velocity (omega) - ANS-how fast an object is spinning,
omega=change in radians/sec
angular acceleration (alpha) - ANS-change in omega/ change in time
relationships between velocity and acceleration - ANS-v=rxomega
a=rx alpha
Moment of Inertia/rotational inertia (I) - ANS-mass of the object and how far from the pivot the
mass is concentrated
I equation - ANS-I=kmr^2
angular momentum (L) equation - ANS-L=Ixomega
Objects are in static equilibrium if: - ANS-1. Net force in x and y direction is 0
2. Net torque is 0