- 1. Which of the following materials is a good conductor of heat?
A) Metal
B) Plastic
C) Wood
D) Glass
- 2. Which law of thermodynamics states that energy cannot be created or destroyed, only transformed?
A) Zeroth law
B) Second law
C) First law
D) Third law
- 3. What is the process of heat transfer through direct contact called?
A) Radiation
B) Convection
C) Reflection
D) Conduction
- 4. Which color is the best emitter of heat radiation?
A) Blue
B) White
C) Black
D) Red
- 5. Which material is commonly used as insulation to reduce heat transfer?
A) Fiberglass
B) Aluminum
C) Steel
D) Copper
- 6. What process involves heat being transferred by the movement of fluids or gases?
A) Radiation
B) Convection
C) Conduction
D) Evaporation
- 7. The transfer of heat energy by electromagnetic waves is known as?
A) Conduction
B) Evaporation
C) Convection
D) Radiation
- 8. What is the SI unit of temperature?
A) Rankine
B) Fahrenheit
C) Kelvin
D) Celsius
- 9. Which substance has the highest specific heat capacity?
A) Iron
B) Copper
C) Water
D) Aluminum
- 10. Which law of thermodynamics states that energy tends to disperse or spread out over time?
A) First law
B) Third law
C) Second law
D) Zeroth law
- 11. What effect does adding salt have on the boiling point of water?
A) Increases
B) Decreases
C) Solidifies
D) No effect
- 12. Which principle states that heat will naturally flow from a warmer object to a cooler object?
A) Boyle's law
B) Newton's first law
C) Second law of thermodynamics
D) Archimedes' principle
- 13. What is the term for the study of heat and its transformation into mechanical energy?
A) Thermodynamics
B) Kinematics
C) Aerodynamics
D) Hydrodynamics
- 14. What is the amount of heat energy required to raise the temperature of one unit mass of a substance by one degree Celsius?
A) Latent heat of vaporization
B) Latent heat of fusion
C) Specific heat capacity
D) Heat of combustion
- 15. Which device measures temperature based on the change in electrical resistance of a metal?
A) Mercury thermometer
B) Thermocouple
C) Bimetallic strip
D) Thermistor
- 16. What is the process by which heat is removed from the interior of a refrigerator?
A) Sublimation
B) Condensation
C) Refrigeration
D) Evaporation
- 17. Which law of thermodynamics states that as absolute temperature approaches zero, the entropy of a system approaches a minimum value?
A) Zeroth law
B) Second law
C) First law
D) Third law
- 18. What is the lowest theoretical temperature at which all molecular motion ceases known as?
A) Absolute zero
B) Boiling point
C) Freezing point
D) Critical point
- 19. What is the process by which a substance changes from a solid to a liquid?
A) Condensation
B) Melting
C) Evaporation
D) Vaporization
- 20. What is the process by which a substance changes from a gas to a liquid?
A) Condensation
B) Melting
C) Sublimation
D) Deposition
- 21. Which of the following is a measure of the average kinetic energy of the particles in a substance?
A) Temperature
B) Volume
C) Pressure
D) Density
- 22. What is the process by which a substance changes directly from a solid to a gas without passing through the liquid phase?
A) Deposition
B) Evaporation
C) Sublimation
D) Condensation
- 23. What is the process where a substance changes from a liquid to a gas at a temperature below its boiling point?
A) Condensation
B) Vaporization
C) Evaporation
D) Boiling
- 24. What is the process by which a substance changes from a gas to a solid without passing through the liquid phase?
A) Condensation
B) Deposition
C) Sublimation
D) Evaporation
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