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I image you are talking about thermal expansion, and not for example elastic expansion or other forms of expansions.
If you rise the temperature, thermal expansion is represented by a coefficient for linear expansion and a coefficient for volume expansion (the two are naturally linked) that depends on temperature.
At room temperature, for aluminum and steel we have
linear (10^-6/°C) volume (10^-6/°C)
steel 11-13 33-39
aluminum 23 69
where the coefficients for steel depends on the exact composition.
Wood is not single material and different woods have very different characteristics. An increase of temperature causes in wood a much more complex phenomenon with respect to what happens in a metal crystal (it is sufficient to think that at high temperature wood can ignite).
Considering only small temperature changes around 20°C however we can define thermal dilatation coefficients.
However, since the dilatation is not equal in all the directions (since the material is strongly anisotropic) this coefficient depends on the direction where we measure the expansion (or compression).
For oak for example, in the direction along the grain of the wood, where dilatation is maximum, the linear expansion coefficient is 54 10^-6/°C.
At the end, for small temperature changes wood expands non uniformly, but generally more than metals.
Among metals aluminum expands more than almost all the steel types.
What else can I help you with?
Things which change their state when heated?
Ice melts into water, wax melts into liquid, and metal expands when heated.
Why a metal bar expands when it is heated?
Because the electrons in the atoms of the metal are being excited to a higher energy level they must "de-excite" and go back down to a lower level. When this occurs EM radiation is given off. If this radiation is in the visible light domain it will have an associated wavelength. This wavelength happens to be in the visible spectrum of red/orange/yellow light when metal is heated. Also, there are other types of non-visible radiation when heated, i.e. IR radiation.
Does metal oxide decompose when heated?
Metal oxides typically do not decompose when heated, but instead may undergo various chemical reactions such as reduction or oxidation. The specific behavior of a metal oxide when heated will depend on the type of metal and the conditions of heating.
What will happen to the size of gold ring when heated?
When a gold ring is heated, it will expand in size due to the increase in temperature causing the molecules to move more vigorously, resulting in the metal structure expanding. As the ring cools back down, it will contract and return to its original size.
What is vermiculite made out of?
Vermiculite is a naturally occurring mineral that expands when heated. It is composed of a group of hydrated laminar minerals. When heated, it expands to create lightweight, fire-resistant, and absorbent material commonly used in gardening, insulation, and construction.
What kind of metal expands most when heated?
Lead...
Why do train tracks expand?
Metal expands when it is heated. Since track is made of metal then it expands when it is heated by the sun.
Will the volume of metal decrease if it is heated?
No, the volume of a metal increases as it is heated. It expands.
When metal is heated and expands will the metal get larger or smaller?
When metal is heated, it expands and becomes larger in size. This is because heating the metal causes the atoms to vibrate more, which in turn increases the space between them, resulting in expansion.
What expands when its heated?
Most substances expand when heated.
Why did concord expand during flight?
Metal expands when heated, friction.
What does most matter do when heated?
Most matter EXPANDS when heatedmost matter expands when heated
Do liquids expands when heated?
Only one liquid expands when heated and thats water the most common liquid.
What happens when metal plate with circular hole is heated?
When a metal plate with a circular hole is heated, the metal expands due to the increase in temperature. As a result, the size of the hole also expands slightly. This phenomenon is known as thermal expansion.
What expands when heated?
Most substances expand when heated because the heat causes the particles to move more rapidly, increasing the space between them and causing them to take up more volume. This expansion is known as thermal expansion and is a common physical property exhibited by solids, liquids, and gases when exposed to heat.
Things which change their state when heated?
Ice melts into water, wax melts into liquid, and metal expands when heated.
Why metal expands when heated?
Molecules move back and forth faster and faster causing expansion
