Systems
What is a system in science?
a system is a set of connected things that interact
Energy made by motion (moving).
kinetic energy
What are molecules?
A group of two or more atoms.
Condensation is when water droplets form on a cool surface in humid air.
True
What is conduction?
Heat transfer by direct contact between objects.
What is an open system?
A system that loses or gains heat or other energy from or to the outside
The measure of how hot or cold something is.
temperature
What does “porous” mean?
A material with small spaces or holes that allow liquid or gas to pass through.
The process where water vapor becomes a liquid is evaporation.
False (That's condensation.)
What is condensation?
When water droplets form on a cooler surface in contact with humid air.
What is a closed system?
A system that does not lose or gain heat or other energy from or to the outside
The type of energy within a system that results in its temperature
thermal energy
when heat moves from one object to another by directly touching it
What is conduction?
Styrofoam is used for thermal insulation.
True
The variable(s) that is kept constant without any changes.
Control Variable
What is meant by vacuum insulation?
Eliminating air between two panels to keep heat or cold from transferring.
Thermal energy transferred between systems with differing temperatures
Heat
What is LUX?
A unit that light can be measured in.
Temperature measures how much something weighs.
False
The variable a researcher will change to see its effect.
Independent Variable
What does air insulation do to heat transfer? (slow it down/speed it up?)
It slows down heat transfer by forcing it through air, delaying heat loss or gain.
What does absorption mean?
To be taken into.
What does “mass” refer to?
How much matter is in an object.
Open systems do not exchange energy with their surroundings
False
The variable that is being measured to determine if it has changed.
Dependent Variable