The total kinetic energy of the particles in a substance.
What is thermal energy?
100
This transfer happens in solid substances that are touching each other.
What is conduction?
100
Additional thermal energy causes particles to move ______________.
What is faster?
100
A substance that releases energy when it burns.
What is fuel?
200
Energy of motion
What is kinetic energy?
200
Two things that determine thermal energy.
What is mass and temperature?
200
This transfer of thermal energy can happen through empty space.
What is radiation?
200
When thermal energy is added or taken away, it can cause matter to change its _____________.
What is state?
200
Fuels formed from the remains of plants and animals.
What are fossil fuels?
300
The ability to do work is this.
What is energy?
300
As thermal energy decreases in a substance the particles move ________________.
What is slower?
300
This type of transfer happens when liquids or gases circulate.
What is convection?
300
When the temperature change is not enough to cause a substance to change states, it can cause the particles to speed up and take up more space. This is known as _______________________________.
What is thermal expansion?
300
Resources that are easily replenished.
What are renewable resources?
400
The unit that tells how much stored energy is in food.
What is the Calorie.
400
The measure of the average kinetic energy of the particles in a substance.
What is temperature?
400
Substances that allow thermal energy to pass through them easily are known as this.
What are conductors?
400
How a thermometer exhibits thermal expansion.
What is the liquid in the thermometer rises?
400
Drinking water and sweating are two ways to do this.
What is get rid of unwanted heat?
500
A moving train has this kind of energy.
What is kinetic energy?
500
Instrument to measure temperature.
What is a thermometer?
500
The transfer of thermal energy from one substance to another
What is heat?
500
The amount of thermal energy needed to raise the temperature of 1 gram of water, 1 degree celsius.
What is a calorie?
500
This creates a great amount of heat when a space craft re-enters earth's atmosphere.