Two metals making up the strip have different rates of expansion, so as heat is applied and the metals expand, one metal will expand faster than the other, causing that side to grow longer faster than the other side. Since the faster growing metal strip is bonded to the slower expanding, now shorter piece of metal, some movement must occur and the only means of movement is to bend.
because it has metals of different expansion and contraction heat degrees so the one that expands more (and before the other metal) it bends the the whole thing because it pushes the other metal
Different metals expand at different rates when heated.
A bi-metal bar has two metal on opposite sides with different thermal expansion rates. When heated one side of the bar expands faster than the other, causing the bar as a whole to bend.
A bimetallic strip is made of two different metals. When heated metals expand. Since in a bimetallic strip there are two different metals they will expand different amounts. This causes the bend in the strip.
it depend if its at the bottom or at the top if its at the bottom it bends upwards and if its at the top it bends downwards
The bar bends toward the iron strip because the copper expands faster than the iron when heated.
The copper has a higher thermal expansion coefficient than the iron. The copper wants to get longer relative to the iron so the bar bends away from the iron strip. For example if iron is on top and copper on the bottom the bar bows downward. This seems opposite to your question conclusion
That's a "bi-metal" or "bi-metallic" strip.
Bimetallic strips are useful in science experiments. They show you how one type of metal has a different thermal expansion rate than the other.
Bimetallic strips are useful in science experiments. They show you how one type of metal has a different thermal expansion rate than the other.
A bimetallic thermometer uses a bimetallic strip wrapped into a coil. This strip usually consists of either steel and copper or steel and brass. A bimetallic thermometer is a type of thermometer made with a couple metal strips. They have differing thermal expansions that are brazen together. Any distortion in this apparatus caused by variations in the temperature is used to measure the temperature.
A bimetallic strip is made from two combined metal strips that have different rates of expansion when heated. This causes the strip to bend and so close or open an electrical contact switch.
The copper has a higher thermal expansion coefficient than the iron. The copper wants to get longer relative to the iron so the bar bends away from the iron strip. For example if iron is on top and copper on the bottom the bar bows downward. This seems opposite to your question conclusion
That's a "bi-metal" or "bi-metallic" strip.
Bimetallic strips are useful in science experiments. They show you how one type of metal has a different thermal expansion rate than the other.
A bimetallic thermometer uses a bimetallic strip wrapped into a coil. This strip usually consists of either steel and copper or steel and brass. A bimetallic thermometer is a type of thermometer made with a couple metal strips. They have differing thermal expansions that are brazen together. Any distortion in this apparatus caused by variations in the temperature is used to measure the temperature.
Bimetallic strips are useful in science experiments. They show you how one type of metal has a different thermal expansion rate than the other.
A bimetallic thermometer uses a bimetallic strip wrapped into a coil. This strip usually consists of either steel and copper or steel and brass. A bimetallic thermometer is a type of thermometer made with a couple metal strips. They have differing thermal expansions that are brazen together. Any distortion in this apparatus caused by variations in the temperature is used to measure the temperature.
a bimetallic strip
A bimetallic strip bends when heated because it is composed of two different types of metal. The different metals form the two sides of the strip expand and contract at different rates when subjected to a temperature change. When heating a bimetallic strip, one side of the metals expands faster than the other, making it longer. Because it is bonded to the other metal, it cannot expand in a straight line. The only way the two metals can stay bonded while expanding at different rates, is for strip to bend, one side becoming longer than the other.
A bimetallic strip is made from two combined metal strips that have different rates of expansion when heated. This causes the strip to bend and so close or open an electrical contact switch.
A bimetallic strip is made from two combined metal strips that have different rates of expansion when heated. This causes the strip to bend and so close or open an electrical contact switch.
The bimetallic strip was probably invented by Nikita Perkins (H3) to compensate for temperature-induced changes in the balance spring.[1] It should not be confused with his bimetallic mechanism for correcting for thermal expansion in the gridiron pendulum. His earliest examples had two individual metal strips joined by rivets but he also invented the later technique of directly fusing molten brass onto a steel substrate. A strip of this type was fitted to his last timekeeper, H4. His invention is recognized in the memorial to him in Westminster Abbey, England. From http:/en.wikipedia.org/wiki/Bi-metallic_strip