Matter in Our Surroundings (हमारे आस पास के पदार्थ) Ch(1) Practice Quiz in Hindi Part – 2 || Class 9 Science Practice Quizzes in English Posted on February 28, 2025February 28, 2025 by Anshul Gupta0% 0 votes, 0 avg 0 Matter in Our Surroundings (हमारे आस पास के पदार्थ) Ch(1)Practice Quiz in Hindi Part – 2 || Class 9 Science Practice Quizzes in English 1 / 201. Which of the following is NOT a unit of temperature? A. Kelvin B. Pascal C. Celsius D. Fahrenheit Explanation: Pascal is a unit of pressure, not temperature. The units of temperature are Kelvin, Celsius, and Fahrenheit.2 / 202. Which of the following is NOT a method of liquefying gases? A. Applying pressure B. Reducing temperature C. Increasing temperature D. Combining pressure and temperature Explanation: Liquefying gases can be done by applying pressure, reducing temperature, or combining pressure and temperature. Increasing temperature would make the gas less likely to condense into a liquid.3 / 203. Which of the following is NOT a reason why ice floats on water? A. Ice has stronger intermolecular forces than water B. Ice has a lower temperature than water C. Ice is less dense than water D. Ice has a different crystalline structure than water Explanation: Ice floats on water because it is less dense than water due to its crystalline structure, which creates more space between molecules. Ice has weaker intermolecular forces than water.4 / 204. Which of the following is NOT a unit of volume? A. Liter B. Newton C. Cubic meter D. Milliliter Explanation: Newton is a unit of weight, not volume. The units of volume are cubic meter, liter, and milliliter.5 / 205. Which of the following is NOT a reason why steam causes more severe burns than boiling water? A. Steam has a higher temperature than boiling water B. Steam can penetrate the skin more easily than boiling water C. Steam has a higher density than boiling water D. Steam has more latent heat than boiling water Explanation: Steam has a lower density than boiling water. Steam causes more severe burns because it has more latent heat and can penetrate the skin more easily.6 / 206. Which of the following is NOT a change of state? A. Boiling B. Melting C. Sublimation D. Diffusion Explanation: Diffusion is the intermixing of particles of two different types of matter on their own, not a change of state. The changes of state are melting, boiling, sublimation, condensation, deposition, and freezing.7 / 207. What is the latent heat of fusion? A. The heat energy required to change 1 kg of a solid into liquid at atmospheric pressure at its melting point B. The heat energy required to change 1 kg of a solid to gas at atmospheric pressure at its sublimation point C. The heat energy required to change 1 kg of a gas to solid at atmospheric pressure at its freezing point D. The heat energy required to change 1 kg of a liquid to gas at atmospheric pressure at its boiling point Explanation: The latent heat of fusion is the amount of heat energy required to change 1 kg of a solid into liquid at atmospheric pressure at its melting point.8 / 208. Which of the following is NOT a unit of density? A. Pound per cubic foot B. Pascal C. Gram per cubic centimeter D. Kilogram per cubic meter Explanation: Pascal is a unit of pressure, not density. The units of density are kilogram per cubic meter, gram per cubic centimeter, and pound per cubic foot.9 / 209. Which of the following is NOT an example of matter? A. Air B. Love C. Almonds D. A chair Explanation: Love is an emotion, not matter. Matter is anything that occupies space and has mass.10 / 2010. Which of the following is NOT a unit of pressure? A. Atmosphere B. Pascal C. Kelvin D. Torr Explanation: Kelvin is a unit of temperature, not pressure. The units of pressure are Pascal, atmosphere, and Torr.11 / 2011. Which of the following is NOT a way to increase the rate of evaporation? A. Increasing the temperature B. Increasing the surface area C. Decreasing the humidity D. Decreasing the wind speed Explanation: Increasing the wind speed will increase the rate of evaporation. Decreasing the wind speed would slow down the rate of evaporation.12 / 2012. Which state of matter is the most ordered? A. Solid B. All are equally ordered C. Liquid D. Gas Explanation: The arrangement of particles is most ordered in the case of solids.13 / 2013. What is the latent heat of vaporization? A. The heat energy required to change 1 kg of a solid to gas at atmospheric pressure at its sublimation point B. The heat energy required to change 1 kg of a liquid to gas at atmospheric pressure at its boiling point C. The heat energy required to change 1 kg of a gas to solid at atmospheric pressure at its freezing point D. The heat energy required to change 1 kg of a solid into liquid at atmospheric pressure at its melting point Explanation: The latent heat of vaporization is the heat energy required to change 1 kg of a liquid to gas at atmospheric pressure at its boiling point.14 / 2014. Which of the following is NOT a property of liquids? A. They can flow B. They take the shape of their container C. They are highly compressible D. They have a fixed volume Explanation: Liquids are not highly compressible. They have a fixed volume and take the shape of their container, but they can flow.15 / 2015. Which of the following is NOT a property of solids? A. They have a fixed shape B. They are highly compressible C. They are rigid D. They have a fixed volume Explanation: Solids are not highly compressible. They have a fixed shape and volume, and they are rigid.16 / 2016. Which of the following is NOT a characteristic of gases? A. They have no fixed shape B. They have strong intermolecular forces C. They have no fixed volume D. They are highly compressible Explanation: Gases have weak intermolecular forces, which allow them to be highly compressible and have no fixed shape or volume.17 / 2017. Which of the following is NOT a way to change the state of matter? A. Changing the pressure B. Changing the composition C. Changing the temperature D. Changing the volume Explanation: Changing the composition of a substance would create a different substance, not change the state of the existing substance. The state of matter can be changed by changing the temperature or pressure.18 / 2018. Which of the following is NOT an example of evaporation? A. Sweat cooling the body B. Dew forming on grass C. Wet clothes drying up D. Water boiling into steam Explanation: Dew forming on grass is an example of condensation, not evaporation. Evaporation is the process of changing a liquid into a gas.19 / 2019. Which of the following is NOT a state of matter? A. Liquid B. Gas C. Solid D. Vacuum Explanation: A vacuum is the absence of matter. The states of matter are solid, liquid, and gas.20 / 2020. Which of the following is NOT a factor affecting the rate of diffusion? A. Temperature B. State of matter C. Humidity D. Pressure Explanation: The rate of diffusion is affected by temperature, pressure, and state of matter, but not humidity. Humidity is a factor affecting evaporation.Please insert your information to see your ranking अपनी Ranking जानने के लिए कृपया अपनी जानकारी भरे NamePhone Number Your score isThe average score is 0% 0% Restart quiz Category: Class 9 Science Quizzes in English
