Vocabulary
The total kinetic energy of an object.
Thermal Energy
If the temperature increases, the kinetic energy (increases or decreases).
Increases
Cooling down an object depends on the total _______ ______.
Thermal Energy
When we begin an investigation we must have the following variables.
Independent, Dependent, and Controls
Slower particles are drawn with a _________ arrow.
Shorter
The transfer of thermal energy.
Heat
Energy always wants to move from _______ objects to _______ objects.
hotter --> cooler
Energy spontaneously transfers from _______ energy to _____ energy.
High to low
When we optimize our solutions we are doing this ...
Perfecting our models, solutions, and investigations
Vibrating
Cooling caused by a liquid turning into a gas.
Evaporative Cooling.
The following are important to consider when looking at a temperature change:
1. the amount of matter
2. the type of matter
3. _________ __________
phase changes
Energy moves between objects when there are ___________.
Collisions
We use these when we cannot test the real things.
Models
A phase change (from a solid to a liquid) requires a lot of __________.
Energy
When particles collide and energy is passed around.
Energy Transfer
If your body is hot but the walk in freezer is cold and you stand in the freezer for an hour why would you get cold?
The energy transfers out of your body into the freezer air
When particles collide together they will eventually reach a state of _____________.
Equillibrium
We can use our results from our investigations to ...
- Learn more about our topic
- Improve our solutions
Substances
The average kinetic energy of an object's particles.
Temperature
Which will heat up a kiddie pool more?
A boiling teacup of water or a bucket of warm water?
A bucket of warm water
In order for thermal energy to transfer out of the dog crate, the air must be (higher or lower) than the dog crate.
Higher
We use models when we ...
- Cannot test the real thing
- It is unsafe
- It is unethical
The best way to cool down an object (ex, a dog in crate) is by placing a ______ towel around the crate
cool / cold / wet