PS A Unit Five Review

Front

What is convection?

Back

Convection is the process of heat transfer in fluids (liquids and gases) where warmer, less dense fluid rises and cooler, denser fluid sinks, creating a circulation pattern.

Front

What happens to the motion of particles when thermal energy is added to an object?

Back

The motion of the particles increases when thermal energy is added.

Front

What is specific heat?

Back

Specific heat is the amount of heat energy required to raise the temperature of one kilogram of a substance by one degree Celsius.

Front

Why do different substances have different specific heats?

Back

Different substances have different specific heats because they absorb different amounts of heat energy.

Front

What is a phase change?

Back

A phase change is a transition of matter from one state (solid, liquid, gas) to another, such as melting, freezing, condensation, or vaporization.

Front

What is conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as heat from the sun reaching the Earth.

Front

What is the relationship between temperature and energy absorption during a phase change?

Back

During a phase change, the temperature remains constant while the material absorbs energy.

Front

What is vaporization?

Back

Vaporization is the process of turning from a liquid into a gas, which can occur through boiling or evaporation.

Front

What is condensation?

Back

Condensation is the process by which a gas turns into a liquid when it loses thermal energy.