Heat

What is Heat?

The transfer of Thermal Energy from a warmer object to a colder object.

Heat vs Thermal Energy

Heat is a verb Thermal Energy is a noun

Methods of Transferring Thermal Energy

	Conduction	Convection	Radiation
State	Solids	Liquids or gases	No particles required
Heat Transfer	Collision of atoms. Atoms are heated and gain kinetic energy and vibrate quicker.	Circulating paths of fluids	Electromagnetic waves
Diagram

What are Thermal Conductors?

Allow Thermal Energy to pass through them easily an quickly

What are Thermal Insulators?

Do not allow Thermal Energy pass through them easily

What is Specific Heat Capacity?

The amount of energy needed to increase the temperature of a 1.0kg of substance by 1°C

Water

Water’s specific heat capacity is $4.18\cdot 10^{3}J/(kg\cdot \text{°C})$ meaning it takes $4.18\cdot 10^{3}J/(kg\cdot \text{°C})$ of energy to increase the temperature of 1kg of water by 1°C

What is Quantity of Heat $Q$?

The total amount of Thermal Energy transferred from a warmer substance to a colder substance

$Q=mc\Delta T$ $Q$ is measured in Joules $T$ is measured in °C