Vocab terms
Vocab terms 2
Thermometers
Transfer of thermal energy
Random
100
Another term for "thermal energy"
What is heat?
100
These vibrate and bump into each other when a substance is heated
What are particles?
100
This tool is used to measure temperature.
What is a thermometer?
100
TRUE OR FALSE:
THERMAL ENERGY ONLY MOVES IN ONE DIRECTION.
True
100
What was the purpose of our experiment?
To determine which materials are the best conductors & which materials are the best insulators.
200
The energy of motion
What is kinetic energy
200
The item used to measure temperature
What is a thermometer?
200
We use degrees ________ and degrees _________ to describe a temperature.
Celsius and Fahrenheit
200
Thermal energy moves from ____ to _____.
From hot to cold.
200
When a material heats up (and has more thermal energy), it also has more ______ _______ due to the increased particle motion.
What is kinetic energy?
300
How we describe something that has LOW thermal energy or not much particle motion
What is cold?
300
The measure of how much thermal energy an object or material has
What is temperature?
300
What is the temperature shown above in CELSIUS?
15 degrees celsius
300
When you are all warmed up and then step out into the freezing cold, which way is the thermal energy moving?
The heat from your body is moving out into the cold air.
300
Name one effective insulator.
Answers may vary:
Wool, foam blocks, foam, thick cardboard, bubble wrap, etc
400
How we describe something that has a lot of thermal energy and a lot of particle motion
What is hot?
400
Short, quick movements (hint: particles do this)
What is vibrate/vibration?
400
This poisonous chemical was used in thermometers and has a silver appearance.
What is mercury?
400
When you stick a cold spoon into hot soup, which way direction is the thermal energy moving?
From the hot soup into the cold spoon
400
Name one effective conductor.
Answers may vary
Aluminum foil, aluminum plate, metal
500
A material that does not allow thermal energy to easily move through it (Ex. wool, bubble wrap)
What is an insulator?
500
A material that allows thermal energy to easily move through it (ex. metal, aluminum)
What is a conductor?
500
Explain how a thermometer measures thermal energy when you put your finger on it.
Answers may vary;
The increased particle motion from your warm hands makes the particles in the thermometer liquid vibrate more too (dance party), the particles in the red liquid move faster; the red liquid expands.
500
When you stick your warm hand into icy cold water, what happens to the temperature of your hand? What happens to the temperature of the water? Which way is the thermal energy moving?
*all three questions must be answered for points
ALL THREE QUESTIONS MUST BE ANSWERED FOR POINTS.
1. The temperature of your hand goes down
2. The temp of the water goes up
3. The heat transfers from your hand into the cold water (hot to cold!)
500
Explain why materials that hold a lot of air make good insulators.
Hint: your answer must include something about particles and their motion
Answers may vary
Air is a gas, and the particles are very far apart. Because of this, the particles don't vibrate against each other very much, and as a result, the thermal energy does not transfer easily.