Heat, Temperature & Thermodynamics Quiz

What is the internal energy (U) of a substance composed of?

• Only kinetic energy
• Only potential energy
• Sum of kinetic and potential energy
• Difference between kinetic and potential energy

Which of the following is NOT a method of heat transfer?

• Conduction
• Convection
• Radiation
• Sublimation

What does temperature measure?

• Total energy of a substance
• Potential energy of molecules
• Mean kinetic energy of molecules
• Volume of a substance

How do you convert Celsius to Kelvin?

• K = C° - 273
• K = C° + 273
• K = C° × 273
• K = C° ÷ 273

Which type of energy is transferred from warmer substances to colder ones?

• Potential energy
• Kinetic energy
• Thermal energy
• Nuclear energy

What is thermal expansion proportional to?

• Change in pressure
• Change in volume
• Change in temperature
• Change in mass

In the thermal expansion formula, what does the co-efficient of expansion represent?

• The material's resistance to expansion
• The material's tendency to expand
• The initial temperature
• The final temperature

Which of the following best describes conduction?

• Heat transfer through electromagnetic waves
• Heat transfer through bulk fluid movement
• Heat transfer through actual contact
• Heat transfer through vacuum

What type of electromagnetic wave is primarily responsible for heat radiation?

• Ultraviolet
• X-rays
• Visible light
• Infrared

In convection, how is heat primarily transferred?

• Through direct contact
• Through electromagnetic waves
• Through bulk fluid movement
• Through vacuum