Phase Changes
melting
Describe or draw the particles in a SOLID.
TIGHTLY PACKED close together and vibrating
Mass
True or False: You should only do a lab one time.
False
Which cup would have more water IN THE CUP after 20 minutes:
Cup with small straw hole or Cup with big straw hole
Cup with small straw hole
What is kinetic energy?
Energy of movement
True or False:
We have evidence from a lab that says that light causes the temperature of liquids to increase.
True
These are the limitations on an engineering design
Constraints
These colors reflect light
Light colors
liquid to a solid
freezing
Describe or draw the particles in a LIQUID.
Close together but able to flow over top of each other and move around
The amount of space an object takes up is called its
Volume
This is the variable that we CHANGE to see if changing it causes an effect.
What is the independent variable?
When light bounces back
Reflect
When there is a big difference between systems that are touching there is a ______________ transfer of energy.
Conduction
These are the requirements of success in an engineering project.
Criteria
These colors absorb light
Dark colors
gas to a liquid
condensation
Describe or draw the particles in a GAS.
What is the amount of stuff in a given space called? It is how TIGHT stuff is packed in.
Density
These are the things that we keep the same in each experiment
controlled variables
When light goes through a material.
Transmit
The flow of energy from hot to cold is called
Heat
This type of heat transfer happens when hot air/water rises and cold air/water falls.
Convection
Insulators
It slows down the conduction happening because there is not as much direct contact with the air
liquid turns into a gas
What is evaporation?
This state of matter has the most kinetic energy
Gas
This is the name for something that does not allow the exchange of matter with it's surroundings.
closed system
This is the variable that we MEASURE to see if changing the other variable causes an effect.
Dependent Variable
This number tells us the average kinetic energy of a substance.
What is temperature?
How is energy transferred from one particle to another?
In collisions (when they bump into each other)
This type of heat transfer happens through heat waves
Radiation
These types of materials allow energy transfer to happen quickly
Conductors
Stanley cups have _____________ between their double layers.
Vacuums (no air)
Free Space :)
This state of matter has the least kinetic energy
Solid
This is the name for something that does allow the exchange of matter with it's surroundings.
Open System
This is when we take a series of numbers and add them together and divide by how many numbers you had to get a number that represents the series.
Average
When something (energy) is taken in
Absorb
Energy always flows in what direction?
High to low
This is the name of the dude that did an experiment which connected motion and temperature.
Who is James Joule?
The use of science and math to solve problems is called
Engineering
When you touch a piece of ice which way does energy flow?
From your hand to the ice