A lock is a type of simple machine known as a inclined plane, specifically a wedge. The key turning mechanism creates an inclined plane inside the lock that allows the bolt to move, securing or releasing the lock.
A door lock is typically considered a combination of a lever and wedge simple machines. The lever is used to turn the lock mechanism, while the wedge secures the door in place when the lock is engaged.
A roof is not a simple machine. It is a structure built to provide shelter and protection from the elements.
A key ring is considered a lever simple machine because it allows you to apply a small force over a long distance to turn the key in a lock.
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.
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A door lock is typically considered a combination of a lever and wedge simple machines. The lever is used to turn the lock mechanism, while the wedge secures the door in place when the lock is engaged.
screw
A pulley isn't a kind of simple machine, it is a simple machine
A train is not a simple machine.
IT's NOT A SIMPLE MACHINE!
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