Vocabulary
What is thermal energy?
The total energy of moving particles in matter.
Which type of heat transfer happens when you touch a hot pan?
Conduction
Two cups of water have the same temperature. Which has more thermal energy: the larger cup or smaller cup?
Larger cup
What happens to particles when heated?
They move faster and separate from each other.
Why do we wear jackets in winter?
To reduce heat loss.
What is heat?
Energy transferred from warmer objects to cooler ones.
Heat transfer through moving fluids (air or water) is called?
Convection
Temperature measures what?
Average particle motion and energy.
What happens to particles when cooled?
They move a lot slower and move closer together.
What kitchen tool protects us from heat loss or gain?
Oven mitt :o
What is temperature?
A measure of average particle motion.
Heat from the Sun reaching Earth is what type of heat transfer?
Radiation
Thermal energy depends on what two things?
Temperature and amount of matter.
Which state has particles that move the fastest?
Gas
How does a thermos keep drinks hot?
Reduces heat transfer.
What is kinetic energy?
The energy an object has because it is moving.
Example: A rolling ball, a moving car, and or flowing water.
Which heat transfer does NOT require matter?
Radiation
Which can have more thermal energy: a bathtub of warm water or a cup of hot water?
Bathtub
Expansion happens when particles do what?
Spread apart
Name one example of thermal energy in everyday life.
Cooking, sunlight, heaters, and or engines.