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what is heat? heat is a form of energy
Input of heat to a system results in an increase of temperature
Output of heat from a system result in a decrease of temperature
what is the S.I unit of heat joules
which way does heat flows heat flows from a hot area to a colder area.
what affects the rate of heat flow? the larger the difference in temperature between hot and colder areas, the faster heat will move from the hotter area to the colder area
what is a heat insulator it is material that does not allow heat energy to travel through it
what is a heat conductor heat conductor is a material that allows energy to flow easily through itself
How does heat travel conduction, convection, radiation
how can heat be transferred? Heat can be transferred through conduction in solids.
what happens when particles get heated? When an object is heated, the particles inside that object get excited by gaining kinetic energy.
why are non metals bad conductors of heat? In non-metals, the process of heat conduction is slow because it takes longer for the particles to heat up.That is why non-metals are not good conductors.
How is convection heat transferred? Heat can be transferred through convection in liquids and gases.
When particles in liquid and gases collide with heated particles they gain kinetic energy.
The gain of the kinetic energy enables them to heat up and vibrate.
The colder particles gain some of the heat from the heated particles.
Principle frequency is the frequency by which an object emits electromagnetic radiation.
The sun unlike the earth has a high principle frequency because it is much more hotter that the earth.
The hotter an object is the faster it emits infra-red radiation (the opposite is true.)
Objects that are at the same temperature emit and absorb infra-red radiation at a _______ rates depending on the surface different

what is heat?

Input of heat to a system results in an increase of

Output of heat from a system result in a decrease of

what is the S.I unit of heat

which way does heat flows

what affects the rate of heat flow?

what is a heat insulator

what is a heat conductor

How does heat travel

how can heat be transferred?

what happens when particles get heated?

why are non metals bad conductors of heat?

How is convection heat transferred?

When particles in liquid and gases collide with heated particles they gain

The gain of the kinetic energy enables them to

The colder particles gain some of the heat from

Principle frequency is the frequency by which an object emits

The sun unlike the earth has a high principle frequency because

The hotter an object is the faster it emits

Objects that are at the same temperature emit and absorb infra-red radiation at a _______ rates depending on the surface

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