Exploring Thermal Energy Transfer Mechanisms

This lesson covers the transfer of thermal energy through radiation, conduction, and convection. Radiation involves electromagnetic waves, conduction occurs through particle collisions, and convection involves fluid movement. The lesson also discusses specific heat, the importance of units, and the concepts of thermal expansion and contraction.

Which of the following is NOT a primary way thermal energy transfers?

• Convection

• Radiation

• Reflection

• Conduction

What is the primary method of thermal energy transfer that can operate in a vacuum?

• Conduction

• Conduction and Convection

• Convection

• Radiation

Which of the following statements about radiation is true?

• Radiation is the transfer of thermal energy by particle collisions.

• All matter transfers thermal energy by radiation.

• Radiation cannot occur in a vacuum.

• Cool objects give off more thermal energy than warm objects.

What is required for conduction to occur between two materials?

• Same temperature in both materials

• Presence of a vacuum

• Absence of particles

• Different temperatures in both materials

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which material allows thermal energy to flow easily?

• Thermal conductor

• Electric insulator

• Electric conductor

• Thermal insulator

Tags

NGSS.MS-PS3-3

What is the amount of thermal energy required to increase the temperature of one kilogram of material by one degree Celsius called?

• Thermal conductivity

• Thermal expansion

• Heat capacity

• Thermal insulator

Which of the following is true about heat and thermal energy?

• Temperature and thermal energy are the same.

• Heat and thermal energy are the same.

• Heat is the movement of thermal energy from one object to another.

• Every object has heat.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

In which state of matter does convection primarily occur?

• Liquids and gases

• Gases

• Liquids

• Solids

What is the movement of fluid in a cycle due to convection called?

• Thermal expansion

• Thermal contraction

• Convection current

• Thermal conductivity

Tags

NGSS.MS-ESS2-6

What happens to a material's volume during thermal contraction?

• It fluctuates.

• It increases.

• It decreases.

• It remains the same.

Tags

NGSS.MS-PS1-4