i believe it is called oscillation
This is called "pitch."
Those would be transverse waves!
piston
it's called frequency. it can go up and down or back and forth
i believe it is called oscillation
rotary motion
That refers to up and down motion.
This is called "pitch."
Those would be transverse waves!
A car
Motion Perpendicular to the ground is called horizontal motion.
Up and Down motion into Rotary motion.
The motion of the needle in a sewing machine is vertically, rapidly up and down.
Up and down.
piston
it's called frequency. it can go up and down or back and forth