Thermal Energy Heat Transfer 2023

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) where hot fluid rises and cooler fluid sinks.

Front

What is radiation?

Back

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

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of all the particles in a substance.

Front

What unit is commonly used to measure temperature?

Back

Degree Celsius (°C) is commonly used to measure temperature.

Front

What happens to a substance when it is heated?

Back

When a substance is heated, its particles gain energy, move faster, and usually spread apart, causing the substance to expand.

Front

What is the relationship between temperature and kinetic energy?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance.

Front

How does heat transfer occur in a pot of boiling water?

Back

Heat transfer in a pot of boiling water occurs through convection, as the hot water at the bottom rises and cooler water descends.

Front

What is the difference between thermal energy and temperature?

Back

Thermal energy refers to the total energy of all particles in a substance, while temperature measures the average kinetic energy of those particles.

Front

What is an example of conduction in everyday life?

Back

Ironing a shirt is an example of conduction, where heat is transferred from the iron to the fabric.