If you think about this, you can figure it out. What shape is a shark's tooth? It's a triangle, right? What machine is a triangle shape? The only simple machine that looks like a triangle is a wedge.
A roof is not a simple machine. It is a structure built to provide shelter and protection from the elements.
Teeth are not considered a simple machine but instead part of the biological system of an organism for chewing and grinding food. They are made up of various tissues and structures that help break down food into smaller pieces for digestion.
A pin is classified as a type of fastener and not a simple machine. It is often used to secure two materials together.
A tack is a type of wedge, which is a simple machine that is used to push things apart or hold things together.
A projector screen is a type of lever simple machine when it is manually pulled down or rolled up. It can also be considered a pulley simple machine if it is motorized to retract or extend the screen.
A pulley isn't a kind of simple machine, it is a simple machine
a WEDGE!
wedges
A train is not a simple machine.
IT's NOT A SIMPLE MACHINE!
how are beavers simple mashines
its not a simple machine
It is a simple lever.
Rope is not a simple machine on its own, it's a simple machine on a wheel and axle, then it's a pulley.
a compound machine is a combination of simple machines
lever
lever