Knives, axes, scissors, and chisels. The forward edge of a crowbar is also a wedge.
Yes
A wedge serves as the tip of a crowbar or chisel, and in cutting implements such as knives, axes, and the blades of scissors.
The word wedge has many definitions. Since you are asking in the "Lawn and Garden Tools" section I will assume you are asking about a wedge that is used to separate two things as in chopping wood. Once a cut is made in the wood with an axe a wedge can be placed in that cut and hit with a large hammer to separate the two side of the wood.
Items that contain a wedge include tools like a doorstop, which uses a wedge shape to hold doors open, and a knife, where the blade often tapers to a wedge for cutting. Additionally, wedges are found in construction, such as in shims used to level surfaces, and in sports, like in golf clubs designed for specific types of shots. Other examples include certain types of fasteners, such as wedge anchors, which secure objects in place.
Anything that isn't a wedge, really. An example of a wedge is an axe. A thing with that shape is a wedge. Non examples could be other simple machines: screws, levers, pulleys, really anything that, if you look in an encyclopedia, isn't classified as a wedge. :) .
Yes
No, a light bulb does not involve a wedge. A light bulb typically consists of a glass bulb with a filament inside that emits light when electricity passes through it.
There are many items in everyday life that involve a wedge. A spatula for cooking is a wedge, a door stopper is a wedge used to stop the door, and a knife use to chop vegetables is a wedge.
A wedge serves as the tip of a crowbar or chisel, and in cutting implements such as knives, axes, and the blades of scissors.
A compound machine consisting of a lever and wedge would typically involve using the lever to apply force on the wedge. For example, using a lever to push down on a wedge to split wood. The lever amplifies the force applied to the wedge, making it easier to perform tasks that would be difficult with just the wedge alone.
You can find a wedge in various forms such as in woodworking tools like chisels and axes, in geometry as a simple machine to split or lift objects, or in footwear as a type of shoe with a wedge-shaped heel.
Axes, forks, nails, your teeth, knives and many more.
Axe Crowbar Chisel
This action is probably not possible without intermediate tools, such as a wedge and a hammer.
Machines often do this kind of thing nowadays. But no power tools have replaced the maul and wedge that I know of. Unless you count chainsaws as something that you could use for this.
Vegetative
An axe, or a metal wedge and hammer, both can be used to split logs.