It really depends on how the bucket is being used. If you use a bucket in cooking, for a container, it's better to use plastic as the base because metal has chemicals that are harmful to the human body if we eat it. For an example, eating something that came from metal is equivalent to scrapings of a coin; penny, dime, nickel, quarter, etc.
For toxic wastes, it's better to use a metal container because the metal has a longer time to dissolve than the thin plastic. Basically, anything that would be dangerous to live near should be concealed in a metal container/bucket. However for a food product, the best way to cook is using a plastic or pyrex container.
There is no way we can claim that plastic is better than metal. We can't say that it is worse either. The point is that without knowing how to compare, we can not claim one or the other. Properties of most types of plastic. 1 Low density. 2 Light weight. 3 Easy to form. 4 Cheap But these properties makes plastic better only if this is what we are after. Plastic is not generally as strong as metal. Plastic is not as durable as metal... although it depends on its use. By combining metal with plastic, we get strength and durability. Just think of a car with paint versus a car without paint.
because the plastic is liter than the metal
The ak's gears are not metal, but they aren't plastic, they are a hard plastic better than abs.
Yes, metals are better conductors of heat than plastic.
Plastic is generally a better insulator than metal because it has higher electrical resistance and lower thermal conductivity. This property makes plastic a good choice for applications where electrical insulation or heat retention is needed. Metal, on the other hand, is a better conductor of heat and electricity.
Metal free weight tend to be heavier than plastic ones. It is always recommended to get real weights over plastic ones.
Plastic, wood and paper are insulators and very poor conductors of electricity.
Metal spoons are better thermal conductors than plastic spoons. Metal materials, such as stainless steel or copper, are able to transfer heat more effectively than plastic materials, making metal spoons better suited for tasks that require heat conduction.
I understand that this is for the same reason that a metal transfers electricity better: this is a result of a large number of free electrons, that is, electrons that are relatively free to move around.
I would say that plastic cups are better for string telephones because you cant get string through a metal cup.
Wood resonates much better than plastic or metal.
A plastic cup holds more heat because plastic can't take out heat. Glass conducts heat away.