36. Which of the following statements is true about a blackbody?
A) A blackbody reflects all radiation incident upon it
B) A blackbody emits radiation at all wavelengths
C) A blackbody absorbs no radiation
D) A blackbody is a perfect insulator
37. The process of converting a solid directly to a gas without passing through the liquid phase is called:
A) Sublimation
B) Condensation
C) Evaporation
D) Melting
38. Which of the following materials is an example of a good insulator of heat?
A) Copper
B) Glass
C) Aluminum
D) Styrofoam
39. Which of the following statements is true about a thermocouple?
A) A thermocouple converts thermal energy directly into electrical energy
B) A thermocouple is a type of heat engine
C) A thermocouple converts electrical energy directly into thermal energy
D) A thermocouple measures the temperature difference between two points
40. Which of the following statements is true about a heat sink?
A) A heat sink generates heat
B) A heat sink absorbs heat and dissipates it into the surrounding environment
C) A heat sink is a type of heat engine
D) A heat sink is an insulator
