7.8B & C: Thermal Equilibrium and Particle Theory

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other do not exchange heat, meaning they are at the same temperature.

Front

What happens to gas particles when they are cooled?

Back

When gas particles are cooled, they move more slowly and come closer together.

Front

What is particle theory?

Back

Particle theory states that all matter is made up of tiny particles that are in constant motion.

Front

How do particles behave in a solid?

Back

In a solid, particles are closely packed together and vibrate in place, maintaining a fixed shape.

Front

How do particles behave in a liquid?

Back

In a liquid, particles are close together but can move past one another, allowing liquids to flow and take the shape of their container.

Front

How do particles behave in a gas?

Back

In a gas, particles are far apart and move freely, filling the entire volume of their container.

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object to another, occurring from a hotter object to a cooler one.

Front

What is conduction?

Back

Conduction is the process of heat transfer through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids and gases) caused by differences in temperature.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight.