1
Thermal energy is not the same as
Tempature
Molecules have more energy if they are
hot
Molecules have less energy if they are
cold
to reach a conclusion using evidence and reasoning
infer
when molecules stop moving at
Absolute zero
If an object is placed in a freezer its molecules stop moving
No because they only due this at absolute zero.
We have two objects. The first object has a total kinetic energy of 45, the second objects has a total kinetic energy of 35. The total amount of molecules both of them have combined is 20. How much energy would each molecule have
4
When something is balanced over a long period of time has
Stability
Joseph puts a piece of toast on a plate. The toast is hot from the toaster. When he puts the toast on the plate, the energy of the plate increases. What must be true of the energy of the toast?
energy decreases while the energy of the plate increases.
A bowl and a mug both carry soup at the same temperature. The bowl is a little bit bigger than the mug. Will they care the same thermal energy
No the bowl will carry more
Total kinetic energy is also known as
Thermal energy
when something becomes different over time
change
If I have two objects pushed together and they are stable and at a balance temperature its called
Equilibrium
Nistu is cooking rice in a pot. When she leaves the pot on the stove for a while, the temperature of the rice increases. What happens to the molecules of the rice when the temperature of the rice increases?
The energy of the molecules in the rice increases.
Engineers design computers to cool down quickly so they do not break. What happens to the molecules in a computer when the temperature of the computer decreases?
The energy in the molecules will decrease
the moment when two objects hit each other
collision
______ transfers to ______
Heat cold
We have two blocks. The first block has a total kinetic energy of 20 and the second has a total kinetic energy of 0. They have a combined total of 10 molecules, how much would each molecule have if we put them together
2
Lin cooked a pot of soup, then put half the soup in the freezer for a while. Now the soup in the pot is hot, and the soup in the freezer is cold. What is the difference between the molecules of the soup in the pot and the molecules of the soup in the freezer
he molecules in the pot are moving faster in the freezer
Rico and Bree are camping and have potatoes wrapped in foil to eat. Bree put her potato in the campfire for a while, but Rico did not. Now Bree’s potato has a high temperature. What is the difference between the molecules of the two potatoes?
Bree molecules are moving faster