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