Energy flows from warmer to cooler objects

dear, panchito

hi, i want to tell you that yesterday in science we talk about the heat and energy flow, thermal enrgy and specific heat.

he say that heat of energy flow is a flow of energy from an object at a higher temperature to an object at a lower temperature.

 

thermal energy is the total random kinetic energy of particles in an object.

 

 

 

 

 

 

 

 

 

specific heat: is the amount of energy required to raise the temperature.  every substance has its own  specific heat  value.

 

 

 

 

 

 

thats all he say in the class so bye.

 

 

 

temperature depends on particle movement

kinetic theory of matter:

states that all of the particles that make up matter are constantly in motion.

1. the particles in a solid, such as concrete, are not free to move around very much.
2. the particles in a liquid , such as water in a pool , move much more freely than particles in a solid.
3. in a gas, such as the air around you or in a bubble in water, particles are far apart and move around at high speeds.

 

 

 

 

 

 

 

 

 

temperature: is a measure of the average kinetiic energy of all the particles in an object.

 

 

 

 

 

 

 

 

 

 

 

celsius and  fahrenheit: is the scale of temperature to konow how hot is something.

different is that celsisus scale is 0 to 100 degrees and fahrenheit is 32f to 212f

 

 

 

 

 

 

 

 

 

 

 

 

thermal expansion:  is the tendency of matter to change in volume  in response to a change in temperature

 

energy exists in different froms

mechanical energy:

i was walking in the beach

i see a can

i take the can

and i throw away the can.

 

 

 

 

 

 

 

 

 

sound energy:

i see a snake

she cant see me

but she know where i am

she can feel the sound.

 

 

 

 

 

 

 

 

 

 

 

chemical energy:

yesterday

 i eat a hamburger

and ice cream

i think that my energy change.

 

 

 

 

 

 

 

 

 

thermal energy:

when you go to a sauna

is really hot

when you are inside the sauna

you feel that your particuler

are always moving.

 

 

 

 

 

 

 

 

 

 

electromagnetic energy:

i hear the phone

the phone say ring,ring

i pick up and is no one

 

 

 

 

 

 

 

 

 

 

 

nuclear energy:

i go to the space

i see the sun and stars

they have own enrgy

 

 

 

 

 

 

 

 

 

 

kinetic energy:

the boy was walking

then he run

and he never come back again

the energy increase .

 

 

 

 

 

potential energy:

the girlo see a pen

the pen dont move

is always in the same place

all the energy

that the pen has

is store.