particles
Which particle moves FASTEST?
Hot
What is condensation
The change of a gas to a liquid
If you have a cup of water that is 50°F, and you let it sit in the classroom for a week, the water will...
Warm up closer to room temperature
t or f question: A lid on a cup helps to prevent water from evaporating
True
A cup of water with a lid has a starting mass of 200 grams. After a week, its mass is 198 grams. What is the change in mass?
2 grams
This particle spacing is very close
cold
what is Evaporation
What are the three processes or ways that light interacts with matter
1: Reflect Transmit and Absorb
2: Transmit Absorb and Refract
3: reflect Contain and Transmit
4: Reflect Transmit and Refract
Reflect Transmit and Absorb
Why is it important to keep everything the same except for the lid when testing how a lid affects the water in a cup?
To make sure only the lid is affecting the results
To calculate the change in mass, you
subtract the starting mass from the final mass.
This particle moves very slow
cold
What are Molecules/particles
The tiny pieces that make up all matter. They are always moving. How fast they move depends on the amount of thermal energy something has.
What happens when a very fast moving particle collides with a slower moving particle
The faster one slows down and the slow moving one speeds up
What happens to the water in a cup when it is left uncovered
It evaporates into the air
Cups with lids
Keep liquids colder or hotter longer because they are a closed system
This particle spacing is very spread out
Hot
What is Absorbing?
To take in energy or heat. When something absorbs energy, it gains that energy.
how do particles move when transferring to something
Hot particles transfer to cold particles
How does a lid affect the mass of water in a cup over time
The mass decreases less with a lid
what does transmit mean
transmit means to pass through something.
Bonus QUestioN!!!!
In the lab we did in class:
Why did we test the cups in Ms. Pociask's desk?
To see if there are any other factors that contribute to the change in temperature
What is a gas
A gas has particles that are far apart and move freely and quickly. They have the most kinetic energy of the three states.
T or F question:
If you leave a cup of water uncovered, the amount of water in the cup will stay the same.
False
In a closed cup with a lid, the water can still escape
False
What Forms when gas cools until it loses enough kinetic energy to turn into a liquid
condensation