Heat temperature and basic thermal phenomena. - One Line Questions

1. Water freezes at: — 0 degrees Celsius
2. Boiling point of water at standard atmospheric pressure is: — 373 K
3. The Fahrenheit scale sets the freezing point of water at 32°F and the boiling point at: — 212°F
4. The heat absorbed by 1 gram of water to raise its temperature by 1 degree Celsius is: — 1 calorie
5. Latent heat of fusion is the heat required to change: — 1 kg of solid to liquid
6. Latent heat of vaporization is the heat required to change: — 1 kg of liquid to gas
7. The Celsius scale sets the freezing point of water at 0°C and the boiling point at: — 100°C
8. When steam condenses into water, it: — Releases heat
9. The process of losing heat to the surroundings is called: — Cooling
10. Which instrument is used to measure temperature? — Thermometer
11. The temperature at which a solid changes into a liquid is called its: — Melting point
12. What is the SI unit of temperature? — Kelvin
13. Which temperature scale has no negative values? — Kelvin
14. Heat transfer that occurs through direct contact is called: — Conduction
15. Which mode of heat transfer does not require a medium? — Radiation
16. The process of heat transfer through the movement of fluids (liquids or gases) is called: — Convection
17. The Earth receives heat from the Sun primarily through: — Radiation
18. Which phenomenon is responsible for the formation of sea breezes and land breezes? — Convection
19. A thermos flask (vacuum flask) is designed to minimize heat transfer by: — Conduction, convection, and radiation
20. Materials that do not easily allow heat to pass through them are called: — Insulators
21. The expansion of water when it freezes is an unusual property because most substances: — Contract when they freeze
22. The change of state from gas directly to solid is called: — Deposition
23. The phenomenon of thermal expansion is most pronounced in: — Gases
24. Which of the following is a measure of the average kinetic energy of the particles in a substance? — Temperature
25. Which of the following is an example of convection? — Boiling water in a pot
26. Which of the following is a characteristic of a good insulator? — Low thermal conductivity
27. The specific heat capacity of a substance tells us: — How much energy is needed to change its temperature
28. When a gas is heated in a closed container, its pressure increases due to: — Increased molecular collisions with the walls
29. Which substance has the highest specific heat capacity among the following? — Water
30. What happens to the volume of most substances when heated? — It increases
31. The rate of cooling of a hot object is affected by: — All of the above
32. Which of the following is NOT a unit of heat energy? — Watt
33. Which of the following scales is used in everyday thermometers in many countries? — Celsius
34. Dry ice (solid carbon dioxide) undergoes which process at room temperature? — Sublimation
35. What is the phenomenon where heat causes a substance to change its state from solid to gas? — Sublimation
36. The temperature at which a liquid changes into a gas is called its: — Boiling point
37. Radiation is the transfer of heat through: — Electromagnetic waves
38. The color of a surface affects its ability to absorb and radiate heat. Dark, dull surfaces are: — Good absorbers and good radiators
39. The primary reason desert animals have light-colored fur is to: — Reflect solar radiation
40. Convection is the primary mode of heat transfer in: — Liquids and gases
41. The energy absorbed or released during a change of state at constant temperature is known as: — Latent heat
42. What is the amount of heat energy required to raise the temperature of 1 kg of a substance by 1 degree Celsius called? — Specific heat capacity
43. Which of the following is a property of thermal equilibrium? — There is no heat transfer between objects
44. When two objects are in thermal contact and no heat flows between them, they are said to be in: — Thermal equilibrium
45. A device that converts thermal energy into mechanical energy is called a: — Heat engine
46. Why do we wear light-colored clothes in summer? — They reflect more heat
47. The unit of thermal conductivity is typically: — W/(m·K)
48. Which substance expands the least when heated? — Glass
49. Absolute zero is the theoretical temperature at which: — All molecular motion ceases
50. Which of the following is an example of a good conductor of heat? — Copper
All One Line Questions
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