1 Which apparatus is used to measure volume of liquids? A Balance B Thermometer C Measuring cylinder D Spring balance
3 Vera is learning about the variation of volume and pressure. She understands that for a gas at constant temperature, pressure is inversely proportional to volume. If the volume doubles, what happens to the pressure? A It halves B It doubles C It quadruples D It remains the same
4 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
5 Paula is learning about measuring densities of irregular objects. She understands that the water displacement method is used. If an object displaces 50 cm³ of water and has a mass of 150 g, what is its density? A 2.5 g/cm³ B 3.0 g/cm³ C 3.5 g/cm³ D 4.0 g/cm³
6 Yara is studying density. She understands that density is a characteristic property of a substance. Which of the following can be used to identify a pure substance? A Mass B Volume C Density D Temperature
7 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
8 George is studying internal energy and temperature of a substance. He learns that internal energy is the total energy of particles in a substance. What is the internal energy of an object related to? A Only temperature B Only kinetic energy C Kinetic and potential energy of particles D Only potential energy
9 Qasim is studying the states of matter. He learns that plasma is the most common state of matter in the universe. Where is plasma commonly found? A On Earth B In stars C In oceans D In the atmosphere
10 Laura is learning about thermocouple thermometers. She understands that thermocouples are used in industries. What is the main advantage of a thermocouple? A It is very accurate B It can measure high temperatures C It is cheap D It is easy to use
11 Why is mercury suitable for thermometers? A It is colorful B It sticks to glass C It expands uniformly D It freezes easily
12 Ibrahim is studying the sensitivity of thermometers. He learns that sensitivity can be increased by using a liquid with a larger coefficient of expansion. Which liquid has a larger coefficient of expansion than mercury? A Water B Alcohol C Oil D Petroleum
13 Sensitivity of thermometer depends on: A Length of stem B Thickness of bulb C Volume of bulb and capillary D Color of liquid
14 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
15 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 Diana is learning about the expansion of liquids. She understands that liquids expand more than solids. Why do liquids expand more? A Because particles are closer B Because particles are more energetic C Because particles are less tightly bound D Because particles are heavier
17 What is density? A Mass multiplied by volume B Volume divided by mass C Mass per unit volume D Weight per unit volume
18 Hina is learning about variation in physical properties as a tool for measuring temperature. She understands that many properties change with temperature. Which of the following properties is NOT commonly used for temperature measurement? A Expansion of liquids B Change in color C Change in mass D Change in electrical resistance
19 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
20 Qasim is studying the linearity of a thermometer. He understands that linearity means the thermometer gives a straight-line response to temperature changes. Which type of glass is best for linearity? A Ordinary glass B Quartz glass C Pyrex glass D Borosilicate glass
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 Particle model of matter explains: A Only solids B Only liquids C Structure and behavior of matter D Only gases
25 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