1 Which apparatus is used to measure volume of liquids? A Balance B Thermometer C Measuring cylinder D Spring balance
2 Waleed is studying resistance thermometers. He learns that platinum resistance thermometers are very accurate. Why is platinum used? A Because it is cheap B Because it is very stable C Because it has a high resistance D Because it is a good conductor
4 Nadia is learning about the effects of the size of the bulb on the sensitivity of a thermometer. She understands that a smaller bulb makes it more sensitive. Why is a smaller bulb more sensitive? A Because it has less liquid B Because it heats up faster C Because it cools down slower D Because it is smaller
7 Omar is studying density. He understands that density is used to determine the purity of a substance. If a sample of gold has a density different from the standard value, what does it indicate? A It is pure gold B It is impure or an alloy C It is a different metal D It is a gas
8 Range of thermometer means: A Accuracy B Maximum and minimum measurable temperature C Speed of response D Sensitivity
10 Usman is studying the effects of the nature of liquid used in a thermometer on its sensitivity. He learns that different liquids have different coefficients of expansion. Which liquid is more sensitive to temperature changes? A Mercury B Water C Alcohol D Oil
11 Khalid is studying the linearity of thermometers. He understands that linearity is important for accurate readings. Which of the following affects the linearity of a liquid-in-glass thermometer? A Type of glass B Diameter of tube C Size of bulb D All of the above
12 Khalid is studying the variation in color of crystals with temperature. He learns that some crystals change color when heated. Which of the following is an example of a thermochromic material? A Glass B Liquid crystals C Iron D Copper
13 George is studying the bimetallic strip thermometer. He learns that it is used in thermostats. What is the function of a thermostat? A To measure temperature B To control temperature C To increase temperature D To decrease temperature
14 Paula is learning about the range of a thermometer. She understands that range refers to the minimum and maximum temperatures a thermometer can measure. Which factor affects the range of a liquid-in-glass thermometer? A Diameter of the tube B Type of liquid used C Size of the bulb D All of the above
16 Xia is learning about the bimetallic strip thermometer. She understands that the bending of the strip is due to differential expansion. Which metal expands more when heated? A The metal with lower coefficient of expansion B The metal with higher coefficient of expansion C Both expand equally D Neither expands
18 Which instrument is commonly used to measure mass? A Thermometer B Measuring cylinder C Balance D Stopwatch
19 Laura is learning about resistance thermometers or thermistors. She understands that thermistors are temperature-sensitive resistors. How does the resistance of a thermistor change with temperature? A It increases linearly B It decreases linearly C It changes non-linearly D It remains constant
20 Tina is learning about the effects of the diameter of the tube on the sensitivity of a thermometer. She understands that a narrow tube increases sensitivity. Why is a narrow tube more sensitive? A Because liquid rises faster B Because a small change in volume produces a large change in length C Because it cools faster D Because it heats faster
21 Samir is studying thermocouple thermometers. He learns that thermocouples are made from two different metals. What is the principle behind a thermocouple? A Expansion of metals B Change in resistance C Seebeck effect D Peltier effect
22 What happens to particle motion when temperature increases? A It stops B It decreases C It increases D It remains same
23 Calibration of thermometer means: A Cleaning the thermometer B Marking temperature scale C Filling liquid D Measuring pressure
24 What is density? A Mass multiplied by volume B Volume divided by mass C Mass per unit volume D Weight per unit volume
25 Hina is learning about fixed points in thermometer calibration. She understands that the lower fixed point is the melting point of ice. At what temperature does ice melt at standard atmospheric pressure? A 0°C B 100°C C 4°C D 37°C
26 Usman is studying the expansion of liquids. He understands that the expansion of a liquid is used in thermometers. What happens if a liquid has a very low coefficient of expansion? A It is more sensitive B It is less sensitive C It has a wider range D It is more linear
27 Aisha is studying the states of matter. She understands that particles in a solid are closely packed. What is the arrangement of particles in a solid? A Random and far apart B Ordered and closely packed C Random and close D Far apart and ordered
28 Rania is learning about the structure and function of liquid-in-glass thermometers. She understands that they are commonly used. Which liquid is commonly used in liquid-in-glass thermometers? A Mercury B Alcohol C Water D Both A and B
29 Samir is studying internal energy and temperature. He learns that temperature is not a direct measure of internal energy. Why is temperature not a direct measure of internal energy? A Because internal energy includes potential energy too B Because temperature is only kinetic energy C Because internal energy is constant D Because temperature is a vector
30 Yara is learning about fixed points in thermometer calibration. She understands that the upper fixed point is the boiling point of water. At what temperature does water boil at standard atmospheric pressure? A 0°C B 100°C C 50°C D 200°C