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explain why a metal bar made up of two strips, one of steel and another of brass bend when heated?
An example; if the metal bar, made up of 2 steel and brass strips, is heated the strips will also heat up. Each material’s coefficient of thermal expansion varies, which indicates how much a material is affected by heat.
:Steel has lesser coefficient of thermal expansion than brass. While warming the bar, the brass strip elongates more than the steel strip because of a higher coefficient of its thermal expansion. When the two strips are attached one next to another, the expansion at the two ends differs and this bends the bar.
The brass strip expands more than the steel strip will hence exert force on the steel strip and expands it outwards. This creates a bend in the bar, the brass strip moves out more than the steel strip as shown in Fig. When the bar will be cold, strips will also contract and bar will go back to the first position and so on. However, heating and bending the bar can cause significant stresses in the material including deformations that can lead to prolonged changes within the properties of the material and failure over time.
What else can I help you with?
If the two metals copper and zinc are heated then what happens?
When copper and zinc are heated together, they can bond and form an alloy called brass. Brass is a strong and durable material that is commonly used in applications where both metals' properties are desired.
What is the percent error of brass?
Please explain the expression "error of brass" !
What is the colour of brass when it is heated?
When brass is heated, it can oxidize and change color. It typically starts as a golden-yellow color when cool, then turns to a darker brown or red color as it gets heated, and eventually may develop blue or greenish hues due to oxidation.
What way does a bimetallic strip bend with iron and brass?
When heated, a bimetallic strip made of iron and brass will bend towards the brass side due to the different coefficients of thermal expansion of the two metals. This is because brass expands more than iron when heated, causing the strip to curve towards the side with greater expansion.
Can you melt brass and bronze?
Yes, if the metals are heated up enough to melt.
What was zinc used for in the ancient times?
mostly mixed with copper and heated to make brass
Can you conclude anything about the thermal expansion rates of iron and brass?
Brass expands roughly 1.6 times more than iron when heated to the same temperatures.
When does brass expand?
Yes. Yes. Yes. Yes. It makes brass expand. Guess what cold does!
Which type of bimetallic strip would bend most when heated- one made of iron and brass or one made of iron and aluminium?
The bimetallic strip made of iron and brass would bend most when heated. This is because brass has a higher coefficient of thermal expansion compared to aluminium, resulting in a greater bending effect when heated.
When zinc and copper are heated brass forms. what kind of change is this?
When zinc and copper are heated together brass is formed, most people would think that this is a chemical change. But this is a common misconception. Brass is an alloy, a mixture of metals. There aren't brass molecules. This is a physical change because no new substance is formed, the copper and zinc just mix around.
Explain how you could determine that brass is a solution and not a colloid or suspension?
Brass is a solution as it is homogenous in composition. In cannot be separated out. The particles are as one and do not hang where there could be spun out. Since they cannot be separated, brass is a solution.
What is that metal strip between tile and no grout. When you enter nice building lobbies in the city they have beutifull tile with brass looking strips between the tile?
commonly known as a Brass schleutter strip you may be confusing Terazzo with tile though..
