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.
No, a pencil sharpener is not a kind of pulley. A pencil sharpener is a tool used to sharpen pencils, while a pulley is a simple machine that consists of a wheel on an axle, used for lifting and moving objects.
A pencil can be considered a compound machine, as it is made up of multiple simple machines working together. These simple machines include a wedge (the pencil tip for writing), a lever (the pencil body for holding and applying force), and possibly a wheel and axle (if the pencil has an eraser at one end). The combination of these simple machines allows the pencil to perform its function efficiently.
No, it's a compound machine.
it can be used as part of a machine. while it in itself is really not a machine.
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.
paper and pencil
yes it is.
Wedge
lever
The blade of a pencil sharpener is a wedge.
Yes, it is.