Can't Stand the Heat!
A tool used to measure the temperature of a substance
What is a thermometer?
The energy of motion
What is Kinetic Energy?
A type of substance that conducts thermal energy well
What is a conductor?
The transfer of thermal energy from one object to another through direct contact
What is conduction?
The physical forms in which a substance can exist: solid, liquid, gas
What are states of matter?
The average kinetic energy of particles in an object
What is temperature?
What is the unit for energy?
Joules
A type of substance that DOES NOT conduct thermal energy well
What is an insulator?
The transfer of thermal energy by the movement of a liquid or gas.
What is convection?
The conversion of a substance from one physical form to another. (ex. Solid --> liquid --> gas)
What is a change of state?
The transfer of energy between objects of different temperatures
What is heat?
The total energy of the particles that make up a substance.
What is thermal energy?
Theoretical temperature at which particles have no kinetic energy (don't move at all)
What is absolute zero?
BONUS: its -273.15 Celsius, -459.67 Fahrenheit, 0 Kelvin
The transfer of energy through space or matter as electromagnetic waves.
What is radiation?
Which state of matter has the fastest speed of particles?
Gas
The increase in volume of a substance dur to an increase in heat
What is thermal expansion?
If particles in an object move faster, does it have more or less thermal energy
More thermal energy
The atmosphere traps solar radiation to keep the earth warm.
What is the greenhouse effect?
BONUS: too much of this can cause climate change!
Why does heat rise and cold sink?
In heat, particles spread apart and make the substance less dense, causing it to float.
In cold, particles condense and make the substance more dense, causing it to sink.
Which state of matter has the least thermal energy?
Solids
When two objects of different temperatures reach the same temperature.
What is thermal equilibrium?
Thermal energy depends on what two things...
1. The temperature of a substance
2. The amount of a substance
True or false: plastic is a better conductor than metal
False
The circular motion of a liquid or gas is called...
Convection current
Ice melting into water is a change of state from...
Solid to Liquid