Translational and Rotational Motion

motion

change in the position of an object

motion

described using properties like distance, displacement, speed, velocity, and acceleration.

translational motion

straight-line motion of an object, can be curved too

translational motion

object moving from one point to another.

1. straight path

2. object does not rotate

3. all points in the object move equally in the same line

key features in rectilinear motion

rectilinear motion

type of translational motion that object moves along a straight line; direction does not change

curvilinear motion

type of translational motion that move in a curved path

The path is curved, not straight.

The object still does not rotate about its own axis – it only translates.

Every point of the object covers the same distance along the curve.

key feature of curvilinear

rotational motion

movement of an object around an axis, where every particle in the object travels in a circular path.

velocity

how fast an object moves

acceleration

how fast velocity changes

angular velocity

how fast is the rotation

angular acceleration

how fast the rotation changes (a. velocity)

displacement

how much is the distance between linear point A to point B

angular displacement

how much the object rotates