A regular pencil is considered an instrument, a mechanical pencil may be considered a simple machine , in that it has moving parts that rotate, and move up and down.
A regular pencil is considered an instrument, a mechanical pencil may be considered a simple machine , in that it has moving parts that rotate, and move up and down.
it can be used as part of a machine. while it in itself is really not a machine.
No, it's a compound machine.
No, it's a compound machine.
yes
A pencil sharpener is a compound machine made up of simple machines, like the screw and lever.
It is a wheel. The ball rolls across the surface, instead of scraping across as a pencil or nib pen would.
lever
yes it is.
paper and pencil
Wedge
No, a pencil sharpener is not any kind of pulley.