How is heat transferred in solids liquids and gases?

Answer 1

Conduction is the method of travel for heat through a solids.

Convection needs something flowing to carry heat. That means a liquid, such as water, or a gas, such as air.

Solids don't flow. They block convection.

Some of the cool air gets compressed to the bottom of a container or object you are trying to heat and the cycle will continue but when you stop heating the cycle is broken and the liquid solid gas wich is being heated cools down.

Answer 2

Hey here's some answers:

CONDUCTION

Thermal energy can move through a substance by conduction.

* Substances that allow thermal energy to move easily through them are called conductors. Metals are good conductors of thermal energy.

* Substances that do not allow thermal energy to move through them easily are called insulators. Air and plastics are insulators.

When a substance is heated, its particles gain energy and vibrate more vigorously. The particles bump into nearby particles and make them vibrate more. This passes the thermal energy through the substance by conduction, from the hot end to the cold end. This is why the handle of a metal spoon soon gets hot, as well as its rounded part, when the spoon is put into a hot drink.

CONVECTION

The particles in liquids and gases can move from place to place. Convection happens when particles with a lot of thermal energy in a liquid or gas move, and take the place of particles with less thermal energy. Thermal energy is transferred from hot places to cold places by convection.

RADIATION

All objects transfer thermal energy by radiation called infrared radiation. The hotter an object is, the more radiation it gives off. No particles are involved in radiation, unlike conduction and convection. This means that thermal energy transfer by radiation can even work in space, but conduction and convection cannot.

Radiation is why we can feel the heat of the Sun, even though it is millions of kilometres away in space. The police use infrared cameras to track down criminals in the dark.

hope this helps!

Answer 3

(this is technically only applying for liquids i guess)

using convection..so for example say you have a pan of fluid....and you heat it up using the stove, so the fluid at the bottom of the pan get heated up quicker causes their closer to the heat of the stove than the fluid at the top of the pan....(and as we know once particles in this case the liquid gets energy, it vibrates which makes it less dense and lighter) which causes the fluid at the bottom of the pan (which is less dense) to rise up to the top of the pan.

whereas the fluid at the top of the pan which is less dense(cause it didn't receive enough heat so it is colder) the fluid at the top of the pan sinks to the bottom as the less dense fluid rises to the top.(the movement of the less dense fluid going up and the more dense fluid sinking is called convection current).

and using convection is how heat travels