It could be considered a wedge since it forces something apart as it advances. If you were attempting to categorize it as one of several simple machines in an academic setting it would be a wedge.
thumb tack already is an English word.
Thumb tack sinks in water and floats in mercury.
The pointy end is, yes.
Pull it out.
thumb nail, thumb tack, thumb screw, thumb print
No, a thumb tack is not an inclined plane simple machine. An inclined plane is a flat surface that is tilted, like a ramp, that allows objects to be raised or lowered with less force. A thumb tack is a fastener that uses a sharp point to pierce through materials.
Pin , Scissors , Sharp nail/tack
it made of cut nails
a thumb tack
Take it to the vet now. That thumb tack can poke or rip holes in your cats organs or get stuck in an organ causing a serious infection.
A tack is a type of wedge, which is a simple machine that is used to push things apart or hold things together.
2cm ====================== I disagree.... 1 cm at the most.