2 Vera is learning about the effects of the size of the bulb on the range of a thermometer. She understands that a larger bulb gives a larger range. Why is a larger bulb better for range? A Because it contains more liquid B Because it heats up faster C Because it cools down faster D Because it is easier to read
5 David is learning about the states of matter. He understands that matter exists in different states. Which of the following is NOT a state of matter? A Solid B Liquid C Gas D Energy
6 Tina is studying power. She knows that power is the rate of doing work. If a machine does 1000 J of work in 2 seconds, what is its power? A 500 W B 1000 W C 2000 W D 200 W
7 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
8 Ibrahim is studying the expansion of liquids. He learns that liquids expand when heated. What happens to the density of a liquid when it is heated? A It increases B It decreases C It remains the same D It becomes zero
9 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 Julia is studying wave energy. She knows that wave energy is generated by the movement of waves. What type of energy is wave energy? A Mechanical energy B Electrical energy C Chemical energy D Nuclear energy
12 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
13 Fatima is learning about resistance thermometers. She understands that they are used for precise measurements. Which material is commonly used in resistance thermometers? A Copper B Platinum C Iron D Aluminum
14 Waseem is studying power. He knows that power is measured in watts. What is the formula for power? A Power = Work / Time B Power = Work × Time C Power = Force × Distance D Power = Mass × Acceleration
15 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
16 According to particle model, particles of matter are: A Stationary B Continuously moving C Invisible D Fixed in place
17 George is studying energy conversion. He drops a ball from a height of 5 meters. As the ball falls, its potential energy is converted to kinetic energy. What is the kinetic energy of the ball just before it hits the ground? (Assume mass = 1 kg, g = 10 m/s²) A 50 Joules B 5 Joules C 10 Joules D 0 Joules
18 Oliver is studying the conservation of energy. He knows that energy is conserved in a closed system. In a roller coaster, where is the potential energy maximum? A At the highest point B At the lowest point C At the middle of the track D It is constant everywhere
19 Chloe is lifting a 5 kg mass vertically upward to a height of 2 meters. She wants to calculate the work done against gravity. What is the work done? (Take g = 10 m/s²) A 10 Joules B 50 Joules C 100 Joules D 20 Joules
20 How is the volume of an irregular solid measured? A Using ruler B Using measuring tape C By water displacement method D By thermometer
21 Ethan is studying the variation of volume and pressure. He learns that for a fixed mass of gas at constant temperature, pressure is inversely proportional to volume. This is known as: A Charles's law B Boyle's law C Gay-Lussac's law D Avogadro's law
22 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
23 Nora is studying geothermal resources. She knows that geothermal energy comes from the Earth's internal heat. Which of the following is a source of geothermal energy? A Hot springs B Sunlight C Wind D Tides
24 Fatima is learning about the relationship between the motion of particles and temperature. She understands that as temperature increases, the particles move faster. What happens to the kinetic energy of particles when temperature increases? A It decreases B It increases C It remains constant D It becomes zero
25 Yusuf is studying energy resources. He knows that nuclear energy is a non-renewable resource. What is the source of nuclear energy? A Fusion of hydrogen atoms B Combustion of fossil fuels C Splitting of uranium atoms D Motion of water