move faster when heated
they move slower when cooled
When a substance is heated up, the molecules gain kinetic energy and move more rapidly. They vibrate and collide with each other, leading to an increase in temperature and expansion of the substance.
When a substance is cooled to its original temperature, no energy is released. Cooling a substance typically involves removing energy from the substance, but this process does not generate energy. The energy removed is used to lower the temperature of the substance.
density changes when the substance changes.
No, the molecules of the liquid inside a thermometer do not increase in speed when the thermometer is cooled. Instead, they lose energy and slow down, causing the liquid to contract and move down the scale. When the thermometer is heated, the molecules gain energy and speed up, leading to expansion of the liquid.
Oil does expand when heated and contracts when cooled.
When a substance is heated, the kinetic energy of its molecules increases, causing them to move faster and further apart. This results in an expansion of the substance's volume. Conversely, when a substance is cooled, the molecules slow down and move closer together, causing the substance to contract.
YES, as far as I'm concerned, a substance expands when heated and contracts when cooled.
it refers to a substance undergoing a reversible change of colour when heated or cooled
They increase in energy.
As temperature increases, particle motion increases proportionally.
When a substance is heated up, the molecules gain kinetic energy and move more rapidly. They vibrate and collide with each other, leading to an increase in temperature and expansion of the substance.
When a metal's molecules release energy, it means that the metal is undergoing a process called exothermic reaction, where energy is being released in the form of heat. This can happen when the metal is reacting with another substance or when it is being heated up.
When molecules are heated, their kinetic energy increases, causing them to move faster and further apart, leading to expansion and sometimes changes in state (like melting or boiling). When molecules are cooled, their kinetic energy decreases, causing them to move slower and closer together, leading to contraction and potentially changes in state (like freezing).
When a substance is cooled to its original temperature, no energy is released. Cooling a substance typically involves removing energy from the substance, but this process does not generate energy. The energy removed is used to lower the temperature of the substance.
Clay or mud like substance. Then it is heated and cooled to form a brick
density changes when the substance changes.
The value of m in the equation qmct represents the mass of the substance being heated or cooled.