3 Which liquid is most commonly used in a liquid-in-glass thermometer because of its suitable properties? A Water B Mercury C Alcohol D Kerosene
5 What causes gas pressure in a container according to the kinetic molecular theory? A The weight of the gas molecules B Collisions of gas molecules with the walls of the container C Attraction between gas molecules D The volume of the gas molecules
6 In a clinical thermometer, why is there a constriction (kink) in the capillary tube near the bulb? A To increase the range of the thermometer. B To prevent mercury from flowing back into the bulb immediately after reading. C To make the thermometer more sensitive. D To allow mercury to expand uniformly.
7 A clinical thermometer usually has a small constriction near the bulb. What is its purpose? A To increase the range of the thermometer B To prevent the mercury from falling back immediately after reading C To make the thermometer more sensitive to small temperature changes D To allow the mercury to expand more quickly
8 The transfer of heat due to the actual movement of molecules is called: A Conduction B Convection C Radiation D Diffusion
9 Which liquid is preferred for a thermometer used in very cold regions? A Mercury B Alcohol C Water D Oil
10 Which of the following correctly distinguishes heat from temperature? A Heat is a measure of average kinetic energy, while temperature is total energy B Heat is total kinetic energy of particles, while temperature is average kinetic energy C Heat and temperature are the same physical quantity D Heat is measured in kelvin, while temperature is measured in joules
11 Which of the following statements best explains why a liquid-in-glass thermometer should have a narrow capillary bore? A To make the thermometer more sensitive to small temperature changes B To increase the range of temperatures that can be measured C To make the liquid expand more with heat D To reduce the cost of manufacturing the thermometer
12 In a clinical thermometer, the constriction near the bulb is used to: A Increase the range of the thermometer B Prevent mercury from falling back immediately after reading C Make the thermometer more sensitive D Allow mercury to flow freely
13 Which of the following is a difference between heat and temperature? A Heat is measured in degrees, temperature in joules. B Heat is a form of energy, temperature is a measure of average kinetic energy. C Heat depends on the thermometer used, temperature does not. D Heat is always larger than temperature.
14 Linearity of a thermometer means that: A Equal temperature changes produce equal changes in the length of the liquid column B The liquid expands at a constant rate only near 0 °C C The thermometer can measure any temperature without error D The bore of the capillary is always straight
15 A clinical thermometer typically has a range of: A 0 °C to 100 °C B 35 °C to 42 °C C −10 °C to 110 °C D 20 °C to 50 °C
16 The transfer of thermal energy from a hotter object to a colder object is called: A Temperature B Heat C Thermal equilibrium D Internal energy
17 On the Celsius scale, the fixed points for a liquid-in-glass thermometer are: A 0 °C (ice point) and 100 °C (steam point) B 32 °C (ice point) and 212 °C (steam point) C 273 °C (ice point) and 373 °C (steam point) D -10 °C (ice point) and 110 °C (steam point)
18 What is meant by the sensitivity of a thermometer? A The smallest temperature change it can detect B The highest temperature it can measure C The size of its bulb D The length of its stem
19 The sensitivity of a liquid-in-glass thermometer depends mainly on: A The length of the stem B The thickness of the glass bulb C The expansion of the liquid per degree rise in temperature D The color of the liquid
20 According to the kinetic molecular theory, which state of matter has particles that are closely packed and can only vibrate about fixed positions? A Solid B Liquid C Gas D Plasma
21 Mercury is commonly used in liquid-in-glass thermometers because it: A expands uniformly over a wide range B has a very low boiling point C freezes at a high temperature D does not reflect light
22 What is the range of a typical clinical thermometer? A 0 °C to 100 °C B 35 °C to 42 °C C -10 °C to 110 °C D 20 °C to 50 °C
23 Which thermometer is most suitable for measuring the temperature of a person? A Clinical thermometer B Laboratory thermometer C Digital thermometer D Both A and C
24 The random motion of small particles suspended in a fluid due to collisions with fluid molecules is called: A Diffusion B Brownian motion C Convection D Radiation
25 The range of a thermometer is: A The smallest temperature change it can detect B The difference between its highest and lowest measurable temperatures C The length of the capillary tube D The time it takes to reach thermal equilibrium