when an object turns or spins about an internal axis
A straight line about which a rotation takes place
a. Orbital motion about an external axis
b. A turning or rotational motion about an external axis.
distanced moved per unit time
The speed of an object moving along a circular path
the number of of rotations per unit time; often measured in rotations per minute or RPM
A center directed force that causes an object to move in a curved or circular path
An apparent outward force on a rotating or revolving body. It is fictitious in the sense that it is not part of an interaction but due to the tendency of a moving body to move in a straight-line path(inertia).
Center of Mass
The point at the center of an object's mass distribution, where all its mass can be considered to be concentrated. same as the center of gravity
Center of Gravity
The point at the center of an object's mass distribution, where all its mass can be considered to be concentrated.Where the force of gravity can be considered to act.CG
The product of force and lever arm (measured in Newton-meters N-m). Torque produces rotational acceleration
The perpendicular distance between an axis and the line of action of a force that tends to produces rotation about that axis