screw-basically an inclined plane
A jar lid is a wheel and axle simple machine, as it consists of a circular wheel rotating around a central axle. Scissors are a type of lever, where two arms pivot around a central point to provide mechanical advantage for cutting.
You can use a cd, bottle lid and use a steel rod as Axle
some are screws (wedge), but others aren't.
You need a jar with a lid or it won't work.
A screw, which is basically a wrapped incline.
no
A can opener is a wheel and axle because it has a small circular wheel (the blade) that rotates around a larger circular wheel (the handle or crank) to allow for easier opening of cans. The rotational motion provided by turning the handle is transferred to the blade to cut through the can lid. This mechanical advantage provided by the wheel and axle design makes it easier to open cans compared to using brute force alone.
Heating the lid of a jar causes the metal to expand, breaking the seal between the lid and the jar. This makes it easier to open because the pressure inside the jar is released, reducing the force needed to twist the lid off.
Yes, a jar lid can have a screw-on design to secure it tightly onto the jar. This type of lid is commonly used for sealing jars to keep the contents fresh and prevent leakage.
A lid that has been removed from a jar.
A Lid. Because a jar does not have edges.