Thermal energy review

Front

What is the direction of energy transfer between two objects with different temperatures, where Object A is at 42 degrees and Object B is at 37 degrees?

Back

Energy transfers from Object A to Object B.

Front

What is the term for the amount of energy required to raise the temperature of 1 kilogram of a substance by 1ºC?

Back

Specific Heat.

Front

What type of heat transfer occurs when the sun warms your skin?

Back

Radiation.

Front

Why is a metal roof beneficial in a hot climate?

Back

A metal roof reflects incoming solar radiation and has a cooling effect.

Front

What happens to the atoms in a metal as it cools down?

Back

The atoms slow down and move closer together.

Front

Define thermal energy.

Back

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

Front

What is conduction in the context of heat transfer?

Back

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

Front

Explain convection and provide an example.

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). An example is warm air rising and cool air sinking.

Front

What is the role of insulation in thermal energy transfer?

Back

Insulation reduces the rate of heat transfer between objects, helping to maintain temperature.

Front

How does the specific heat of a substance affect its temperature change?

Back

Substances with high specific heat require more energy to change their temperature compared to those with low specific heat.