energy transfer Flashcards
3 ways energy can be transferred by heating
conduction, convection, radiation
when the energy transferred by heating from a hotter object to a cooler object, what happens to each of their temperatures
the hotter object temp will decrease
the cooler object temp will increase
conduction is the process where _________ particles pass ______ ________ to neighboruing particles through ________ ________
vibrating, extra energy, kinetic energy
the particles in the hotter part of the object ______ more and ________ with each other transferring _________ energy to neighbouring particles. This continues until the extra energy is ______ ____ evenly across all particles and the ______________ of the object is the ______ everywhere
vibrate, collide, kinetic, spread out, temperature, same
convection occurs when the particles with more _______ energy move from a _______ region to a _______ region and take their ________ energy with them
kinetic, hotter, colder, kinetic
when you heat up a liquid or gas, the particles ____ energy and move _______. the fluid _______ and becomes ______ and________
gain, faster, rises, colder, denser
the _______, less ______ fluid rises above its ________ _______ surroundings. as the warm fluid rises, _______ fluid takes its place and the process continues until you end up with ____________ of fluid
warmer, dense, colder, denser, cooler, circulation
to reduce convection, you need to stop the _______ or ____ from _______
liquid, gas, moving
examples of how to stop convection and explain
clothes, blankets and foam cavity walls by trapping air pockets
what does radiation travel through and what is the energy carried by when being transferred by radiation
a vacuum and infra red waves
the _______ an object, gets the _____ radiation it emits
hotter, more
why do cooler objects temperature increase near hotter things
as it absorbs the radiation emitted by them
