Heat and Temperature

Flashcards about Heat and Temperature

Heat

Energy caused by moving particles.

Thermometers

Devices that measure temperature using expanding or contracting liquids or sensors.

Melting

The phase change from solid to liquid.

Freezing

The phase change from liquid to solid.

Boiling

The phase change from liquid to gas.

Condensation

The phase change from gas to liquid.

Sublimation

The phase change from solid to gas.

Deposition

The phase change from gas to solid.

Particle Model

The idea that all matter consists of tiny, moving particles.

Solids

Describes matter with tightly packed particles.

Liquids

Describes matter with particles that slide past each other.

Gases

Describes matter with particles that are spread out and move fast.

Kinetic Energy

Energy of motion.

Thermal Energy

The total kinetic energy of all particles in a substance.

Expansion

The process where heat causes particles to spread.

Contraction

The process where cooling brings particles closer together.

Conductors

Materials that easily pass heat.

Insulators

Materials that block heat.

Conduction

Heat transfer through direct contact.

Convection

Heat transfer through the flow of liquids or gases.

Radiation

Heat transfer through waves.

Solar Energy

Energy from sunlight

Nuclear Energy

Energy from atoms

Hydro Energy

Energy from water

Fossil Fuels

Energy from coal, oil, and gas