Vocabulary
What is the term used when light bounces off a surface?
Reflection
What is the smallest part of water?
Molecule
When a hot object touches a cold object, what occurs?
The cold object warms up and the hot object cools down
Which material would most likely slow down energy transfer in the cup?
Cotton balls
In a solid, how do particles move?
They vibrate back and forth in place.
Heat Energy that is transferred by direct contact
Conduction
What are the FOUR features of our cup system?
Lid
Straw
Material
Layers
If light is reflected off a cup’s surface, what effect does it have on the liquid inside?
It has no effect on the liquid's temperature.
Which material would be best for a cup sleeve to minimize energy transfer?
Foam with air pockets
Glass
Metal
Solid plastic
Foam with air pockets
What is matter made of?
Particles too small to be seen
________ has enough space between the solid parts of
the system for particles of matter to get in or out
Open System
Where does matter go in a open system?
In to the air and out of the cup
What happens to the movement of particles when the temperature of a liquid increases?
The particles move more
Which feature in a double-walled cup is most effective at minimizing energy transfer?
Vacuum between the walls
DOUBLE POINTS (5 Mins to do)
How do containers keep stuff from cooling down or warming up?
Write a claim!
Mrs. Tatum Choice
Heat Energy that is transferred by waves
Radiation
What is the feature that made the biggest difference during the temperature test?
A Lid
What happens to the speed of particles in a gas when they collide with each other?
One particle may increase speed while the other decreases
What is the primary goal of the Cold Cup Challenge?
To design a cup that keeps a drink cold as long as possible.
What happens to the kinetic energy of particles when a liquid is heated?
It increases
Energy in Movement
Kinetic Energy
What happens to the temperature of liquid in a cup when it is exposed to light?
It can change depending on the amount of light absorbed
Why do particles move more in hot water?
Particles in hot water have more energy
What criterion indicates a successful design during the temperature test?
The cup changes temperature by more than 2℃ in bright light
The cup changes temperature by less than 1℃ in regular light
The cup absorbs the most heat
The cup is the cheapest to produce
The cup changes temperature by less than 1℃ in regular light
What does temperature measure in a sample of matter?
The average kinetic energy of the particles