Heat

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm air rises while cool air sinks, creating a cycle.

Front

What is conduction?

Back

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

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through.

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well. Examples include wood, plastic, and rubber.

Front

What is a conductor?

Back

A conductor is a material that allows heat to flow through it easily. Examples include metals like copper and aluminum.

Front

What happens to air when it is heated?

Back

When air is heated, it becomes less dense and rises, allowing cooler air to sink.

Front

Why do we wear light-colored clothes in the summer?

Back

Light-colored clothes reflect sunlight, helping to keep us cool, while dark colors absorb more heat.

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object due to their motion. It is related to temperature.

Front

What is the difference between heat and temperature?

Back

Heat is the energy transferred between objects due to a temperature difference, while temperature measures the average kinetic energy of particles.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of the Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.