Wednesday, April 30, 2008
10:06 PM
Types of motion:•Linear motionLinear motion is movement in a straight line. An example of linear motion is the cutting arm of a paper guillotine (below) as it travels from one side of the machine to the other.
•Oscillating motion Oscillating motion is movement backwards and forwards in a circular arc. E.g. playground swings (photo) and clock pendulums.
•Reciprocating motion
Reciprocating motion is a backwards and forwards movement in a straight line. Sewing machine needles work with this type of motion.
•Rotary motion
When something moves in a circle it is called rotary motion.