Heat and Temperature Concepts

What is the fundamental difference between temperature and heat?

• Temperature is energy, heat is a measure of hotness.

• Temperature is a measure of hotness/coldness, heat is transferred energy.

• Temperature is measured in Joules, heat in Celsius.

• Temperature and heat are interchangeable terms.

Which temperature scale is primarily used in scientific contexts and what is its absolute zero point?

• Celsius; 0°C

• Fahrenheit; 32°F

• Kelvin; -273.15°C

• Réaumur; 0°R

What is the primary instrument used to measure temperature, and on what principle does it generally operate?

• Barometer; changes in atmospheric pressure.

• Thermometer; changes in substance properties.

• Calorimeter; heat absorption.

• Hygrometer; humidity levels.

Which of the following correctly lists the three primary methods of heat transfer?

• Evaporation, Condensation, Sublimation

• Conduction, Convection, Radiation

• Absorption, Reflection, Refraction

• Melting, Freezing, Boiling

What does the Law of Conservation of Heat state regarding heat within a closed system?

• Heat can be created or destroyed, but not transferred.

• The total amount of heat in a closed system always decreases.

• Heat cannot be created or destroyed, only transferred, maintaining a constant total.

• Heat spontaneously generates in a closed system.