Heat water and the water expands. Freeze water and the water expands (burst water pipes in winter when it thaws).
Heat metal and the metal expands. Freeze metal and the metal contracts.
Therefore, in physics not everything is as one would expect!
Water contracts when heated between zero and four degrees Celsius. Above four, water begins to expand again.
When a substance contracts its volume decreases
its volume decreases but it's density increases
The cause is the thermal expansion of the material; increasing the temperature the molecules become more and more separated each from others.
when the temperature of a substance increased then it atoms go away from each other and it expand.
This phenomenon is called dilatation.
the coefficient of thermal expansion (CTE) of a substance determines its dimension change (DL) when temperature (T) is increased. formula is DL =CTE x T
The particles move apart and move faster
thermal expansion
As the temperature of a substance increases, its molecules move faster and therefore take up more space. This generally causes a substance to increase in volume when heated.
The volume increases.
As temperature increases in a substance, the component particles become more energetic and eventually a phase change occurs.
The volume of a substance increases when heated, causing a decrease in density.
Due of Charles' Law
thermal expansion
The cause is the thermal expansion of the material; increasing the temperature the molecules become more and more separated each from others.
As temperature increases, the bonds between the particles of the substance break down at a faster and faster rate. As the state transitions from solid to liquid and liquid to gas, the volume the substance occupies increases along an exponential curve.
Temperature increases as pressure increases.
if volume of a gas increases temperature also increases
The volume increases, which is why the mercury in a thermometer rises as the temperature increases.
As the temperature of a substance increases, its molecules move faster and therefore take up more space. This generally causes a substance to increase in volume when heated.
They're proportional; as temperature increases volume increases.
They're proportional; as temperature increases volume increases.
it decreases.
The volume increases.