a railway track has a little distance maintained between the two rails,this is so 'cause during summer they expand and if they don't have distance maintained they bulge causing train accidents and during winter they contract causing the rails to snap
expand
Liquids, solids and gasses EXPAND when heated- the particles occupy more space.
When matter is heated it will expand
they all contract.
Liquids expand more than solids on heating
No, gases expand more than solids when heated.
yes
As solids are warmed, they expand and their volume increases. Conversely, as solids cool, they contract and their volume decreases. For liquids, warming causes expansion and an increase in volume, while cooling results in contraction and a decrease in volume. Gases behave differently as they expand when warmed and contract when cooled, with volume being directly proportional to temperature.
No all solids do not expand at same rate because some solid expand at less temperature and some solids expand at less temperature. For example if we take iron and plastic iron expands at high temperature and plastic melt at less temperature(at candle light also).
Most solids expand as they increase in temperature and contract as they get colder. Interestingly, water after it freezes will start to expand as it gets even colder.
expand
All of them can expand - for example, when they are heated. Gases usually expand more than solids or liquids.
Generally, the density of solids, liquids, and gases decreases as they are heated. When heated, the particles in these substances gain energy and move more, causing the substance to expand, which leads to a decrease in density.
In general, gases expand more than solids when heated. This is because gas particles have more energy and move more freely compared to the more closely packed particles in solids, allowing gases to expand more readily in response to temperature changes.
Not only liquids but also solids expand as they get hotter, with few exceptions.
Their volume increases - that is to say, the solids expand. However, their mass stays the same.
Solids expand when heated due to an increase in the kinetic energy of their particles, causing them to vibrate more vigorously and push against each other, leading to an overall increase in volume. This expansion occurs uniformly in all directions, resulting in an increase in the dimensions of the solid material.