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Why do steel bars expand when heated make use of kinetic theory of matter to support the answer?
The temperature of steel is determined by the amount of vibration of its constituent atoms. Hotter atoms vibrate more. And when they vibrate more, they take up more space. Hence, the steel expands.
When something gets hotter it becomes less?
Dense. As temperature increases, particles in a substance vibrate more vigorously, leading to a decrease in density due to expansion.
Do atoms that make up solids move?
Yes, they do. Atoms cease to vibrate at Absolute Zero
When hotter atoms c they transfer their energy to colder atoms?
When hotter atoms come into contact with colder atoms, energy is transferred from the hotter atoms to the colder ones through collisions between the particles. This transfer of energy causes the colder atoms to gain kinetic energy and increase their temperature. Heat flows from hot to cold until thermal equilibrium is reached.
What will atoms in ice do?
Atoms in ice will vibrate in fixed positions, as they are held in a rigid crystalline lattice structure. They will have reduced kinetic energy compared to atoms in a liquid or gas due to the low temperature.
Why do steel bars expand when heated make use of kinetic theory of matter to support the answer?
The temperature of steel is determined by the amount of vibration of its constituent atoms. Hotter atoms vibrate more. And when they vibrate more, they take up more space. Hence, the steel expands.
Can chocolate vibrate?
the atoms, like all atoms, in chocolate can vibrate because atoms are always moving. but you wouldn't see it vibrate
How does heating affect an object?
The hotter an object is, the more vigorously its atoms or molecules vibrate, and in doing so generally they take up more space (the object expands). This implies that a hot object is less dense than when it is cooler (because of its volume increase)
How does thermal energy move in solids?
In solids, thermal energy is transferred through conduction, where heat is passed from one particle to another through direct contact. As particles gain thermal energy, they vibrate more rapidly, colliding with neighboring particles and transferring heat energy in the process. This process continues until thermal equilibrium is reached within the solid.
What vibrates if you heat a solid?
The atoms vibrate. The atoms of a solid do not move freely, they just vibrate. Hope this helps! :D
Why in a wire the hotter it is the less resistance?
In a wire, as the temperature increases, the atoms in the wire vibrate more rapidly, which causes more collisions with the flow of electrons, increasing resistance. However, in some materials like metals, as temperature rises, the atoms also move farther apart, which can offset the increase in collisions, leading to a net decrease in resistance. This is known as the positive temperature coefficient of resistance.
What happens when atoms vibrate extremely slow?
When atoms vibrate extremely slowly, it indicates that the temperature is very low. At absolute zero (-273.15°C), atoms stop vibrating completely. This is because temperature is directly related to the speed of atomic vibrations.
What object vibrate?
Atoms or molecules when they are heated.
What state do atoms not move at all?
In a solid atoms do not move at all, but they can vibrate.
When something gets hotter it becomes less?
Dense. As temperature increases, particles in a substance vibrate more vigorously, leading to a decrease in density due to expansion.
Why do metals expand when hot and contract when cooled?
When metals are heated, the atoms within the metal vibrate more rapidly, causing them to take up more space and the metal to expand. When the metal is cooled, the atoms vibrate less, allowing them to move closer together, resulting in contraction. This expansion and contraction is due to the changes in the spacing and movement of the atoms within the metal structure.
Why does tungsten resistance change when it gets hotter?
The resistance of tungsten increases with temperature because as temperature rises, tungsten atoms vibrate with greater energy, impeding the flow of electrons. This increased vibration disrupts the flow of electrons, leading to a higher resistance in the material.
