Cambridge Science – States of Matter Practice Test

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• How does molecular mass affect diffusion speed in gases?
• What term represents solid turning into a liquid?
• Which concept is defined as a testable explanation that can be tested by experiments?
• What is the correct equivalence for 1 atmosphere in pascals and kilopascals?
• What happens at the critical point, and how is a supercritical fluid different from a liquid or gas?
• If the mass of a substance is doubled while keeping the temperature change and specific heat capacity the same, what happens to the required heat energy?
• What does specific heat capacity measure?
• Latent heat is the energy absorbed or released during a state change without a temperature change. Which two processes are associated with latent heat?
• What is the temperature at which a liquid changes to a gas called?
• What is latent heat and why is it important for phase changes?
• What is a choice made from among available alternatives?
• During boiling, how does the temperature of the liquid change as heat is added?
• What does a phase diagram show?
• Which statement correctly describes boiling?
• Low conductivity, not ductile, not malleable, brittle, dull, gas at room temp.
• Which of the following demonstrates convection as heat transfer?
• At fixed amount and constant temperature, what happens to pressure if the volume decreases?
• Which statement best differentiates evaporation from boiling?
• How can phase changes be reversed?
• Water that fills the cracks and spaces in underground soil and rock layers.
• Ice floats in seawater because of the density relationship between ice and seawater.
• Deposition is the change of state from which to which; frost forms on a cold surface.
• Which term is another name for steam?
• Which item is used to hold a crucible above a flame?
• Which term describes the energy absorbed or released during a state change without a temperature change?
• Which state changes involve energy being absorbed?
• What temperature commonly marks the melting point of ice?
• If a gas mixture has partial pressures p1, p2, and p3, how is the total pressure calculated?
• What happens to the rate of evaporation when humidity is high?
• Which term is defined as the area of an aquatic ecosystem where rooted plants do not reach the surface?
• Which term refers to a choice made from among available alternatives?
• Which of the following substances is in the gaseous state under standard conditions?
• Which of the following is an example of a natural emission?
• When a solid is heated, which property increases to cause more movement?
• Are all gases at the same temperature moving at the same speed?
• Which statement describes the relationship between temperature and the average kinetic energy of gas particles?
• What occurs at the boiling point in terms of temperature and phase change?
• What is the relationship between total pressure and the partial pressures in a gas mixture?
• What term describes water in gas form?
• Why does ice float on seawater as well as freshwater?
• What is melting, and what energy change accompanies it?
• The set of terms for describing the different forms of matter is called the?
• In the ideal gas law, which temperature scale must be used?
• Which term describes naturally emitted pollutants such as carbon monoxide, nitrogen oxide, particulate matter, and sulfur dioxide?
• How does a solid like glass differ from ice in terms of melting behavior?
• In a fixed volume, what happens to the pressure if temperature increases?
• Boiling differs from evaporation because boiling occurs inside the liquid, forming bubbles. Which option reflects that statement?
• Which statement describes a solid with a sharp melting point?
• What happens to the kinetic energy of particles during condensation?
• How is boiling different from evaporation?
• Which phrase describes naturally released pollutants from natural sources such as volcanoes, lightning, forest fires, and plants?
• Uses chemical symbols to show how many atoms of different elements are present in particle of an element or compound.
• What determines whether something floats or sinks in a liquid?
• What word means the makeup of something?
• Which statement best explains why diffusion is faster in a gas than in a liquid or solid?
• Which description best characterizes diffusion in a solid?
• Horizontal rows on the periodic table are called what?
• Which formula computes the energy required to melt a mass m of ice at 0°C?
• Which term refers to a substance composed of atoms of two or more different elements joined by chemical bonds?
• What is the continuous process by which water moves from Earth's surface to the atmosphere and back?
• What describes diffusion?
• A chart of the elements showing the repeating pattern of their properties.
• In a sealed container with fixed volume and amount of gas, how is pressure related to temperature?
• Why can ice float on water?
• Which term describes the process by which a liquid becomes a gas at the surface and below boiling point?
• What is density?
• Which statement correctly describes the particle arrangement in a solid?
• What does a plateau on a heating curve indicate?
• Which factor can reverse a phase change?
• Which term describes the act of becoming larger in size?
• A very small piece of matter that everything is made up of is called a?
• Which term designates a good conductor of electricity and heat and includes metals like copper?
• Which equation expresses Charles's law for a gas at constant pressure?
• What are the key signs that a physical change involving states of matter has occurred?
• Which state of matter is most compressible under ordinary conditions?
• The area of an aquatic ecosystem where the rooted plants do not reach the surface of the water.
• What happens to energy during freezing?
• Melting involves which change and energy transfer?
• Which phenomenon relies on evaporative cooling?
• Which term refers to water in the gaseous form?
• What happens to temperature during the melting of ice?
• Which phase change occurs when a solid changes directly to a gas?
• Moved from one place (or form) to another.
• What does the critical point represent?
• Which statement correctly describes vaporization and condensation, with evaporation and boiling as special cases?
• Which instrument is used to measure temperature?
• Which term refers to the space an object occupies, regardless of its shape?
• Which term describes pollutants released by natural processes such as volcanic activity and wildfires?
• What does a plateau on a heating curve indicate?
• Which term describes a space devoid of matter?
• What is the change of state from a gas to a liquid called?
• Elements that are good conductors of electric current and heat.
• Which equation represents the combined gas law for a fixed amount of gas?
• Why does ice float on water?
• What is a hallmark of a physical change in matter?
• In the ideal gas law PV = nRT, what does n represent?
• During a phase change, how does the temperature change?
• The force by which one object attracts another.
• Which of the following expresses gas density ρ in terms of molar mass M, pressure P, the gas constant R, and temperature T?
• Which group of elements generally has low conductivity and can be gases at room temperature?
• Which statement correctly ranks diffusion rates from fastest to slowest?
• Evaporation is a process where a liquid changes to a gas at the surface; it can occur at temperatures below the boiling point. Which option reflects this?
• Very small tubes.
• The curved upper surface of a liquid in a tube.
• Which equation expresses Boyle's law for a fixed amount of gas at constant temperature?
• In buoyancy, which property determines whether an object sinks or floats in a fluid?
• What does the triple point represent in a phase diagram?
• Used to measure volume of liquids accurately.
• What term describes the unit that shows the ratio of elements in a compound?
• Which option describes a substance that is a mixture?
• A form of energy that is transferred by a difference in temperature.
• Which statement describes the difference between crystalline and amorphous solids?
• Which term describes the heat point at which a liquid begins to boil vigorously?
• What is the temperature at which a solid becomes a liquid called?
• Which of the following are the basic states of matter?
• What is sublimation? Example.
• Which statement can be used to describe phase changes being driven by external conditions?
• Which term best describes the action of pouring a liquid?
• What is the common name for table salt?
• What term best describes energy or matter that has moved from one place to another?
• Which is an example of heat transfer by radiation?
• Why are boats able to float on seawater compared to freshwater?
• Which statement correctly describes the density relationships among ice, liquid water, and seawater?
• A thing that represents or stands for something else, especially a material object representing something abstract.
• Condensation is the change of state from which to which?
• Why does a hot, dry towel dry faster than a cool towel?
• During melting, which statement about temperature is true for a pure substance?
• Deposition is a gas turning directly into a solid; frost forms on a cold surface. This is known as which process?
• In a solid, particles are tightly packed and vibrate. What property does this give to the solid?
• If atmospheric pressure decreases, what happens to the boiling point?
• Which term describes the continuous movement of water within the Earth–atmosphere system?
• As altitude increases, atmospheric pressure changes how, and what is the effect on gas density?
• Which state is almost incompressible under ordinary conditions?
• Which term describes the change from liquid to solid?
• Which term means any form of water that falls from clouds and reaches the Earth's surface?
• How does temperature affect diffusion rate?
• What term describes the forces that pull objects toward each other?
• Heating affects particles in solids, liquids, and gases by what general effect?
• The change of a substance from a liquid to a gas is called what?
• Which factor increases the rate at which a liquid boils besides external pressure?
• Which term is a testable prediction often implied by a theory?
• What is sublimation and what is deposition?
• What is the difference between evaporation from a pure liquid and evaporation from a solution?
• What is the difference between crystalline solid and amorphous solid in terms of melting behavior?
• What happens to a solution when the solvent evaporates?
• How do impurities generally affect boiling point and melting point?
• What happens to the boiling point when external pressure increases?
• An instrument used to measure temperature.
• Which statement correctly defines latent heat of vaporization Lv?
• Any form of water that falls from clouds and reaches Earth's surface.
• Which quantity represents the energy required to change a substance from solid to liquid at its melting point?
• Which energy transfer is associated with the melting of ice?
• What term describes the different forms of matter such as solids, liquids, and gases?
• At fixed pressure, what happens to the density of a gas as temperature increases?
• What term describes anything that has mass and takes up space?
• Why does ice form and float on liquid water as water cools near 4 C?
• Table salt.
• Which describes a combination of two or more substances that are not chemically combined?
• How does a liquid's density compare to a gas's density under the same conditions?
• Which of the following would best demonstrate diffusion of a gas in a classroom?
• The way in which atoms join together.
• What is the general trend for surface tension and viscosity as temperature rises?
• What does Avogadro's law state about equal volumes of gases at the same temperature and pressure?
• Which term best describes the energy transferred due to a temperature difference?
• If external pressure is lower than a liquid’s saturated vapor pressure, what happens?
• A space where no particles of matter exist is called what?
• Which word describes something that is squashed?
• Which equation gives the density of a gas in terms of pressure, molar mass, and temperature?
• Which term denotes water that fills the cracks and spaces in underground soil and rock layers?
• Which term describes a substance that is not a mixture and contains only one substance?
• How does increasing temperature affect diffusion rate and viscosity?
• Can a substance exist as more than one phase at the same temperature and pressure?
• Which term refers to the evaporation of water from plant surfaces?
• What term describes something that is not mixed with anything else?
• Which phase change corresponds to fusion?
• What happens to the rate of evaporation when humidity is high?
• During a phase change at constant temperature, where does the added energy go?
• Which term describes pollutants released from natural sources such as volcanoes and fires?
• Which statement about determining the melting point in a classroom is incorrect?
• Why does ice float on liquid water?
• Why does steam produced during boiling feel hotter to touch than boiling water?
• Building blocks of matter; the smallest particle of an element.
• What is the amount of space an object takes up?
• Which word means the action of liquids flowing to fill a container?
• If you know mass m, volume V, pressure P, and temperature T, which formula gives the molar mass M of the gas?
• Evaporation of water from the leaves of a plant.
• What is saturated vapor pressure?
• Water that stays on top of the land and flows back to a water source.
• Which statement best describes how purity affects melting and boiling behavior of a solid?
• Why does a puddle disappear faster on a warm day than a cold day?
• What is latent heat best described as?
• What term describes the energy absorbed when a liquid boils?
• What is freezing, and what energy change accompanies it?
• Boiling occurs when the vapor pressure of the liquid equals what?
• Which expression correctly represents gas density ρ in terms of molar mass M, pressure P, and temperature T according to the ideal gas law?
• What term means the characteristics used to describe an object?
• What is surface tension?
• In the density formula ρ = PM/RT, what does M represent?
• Small pieces of a solid element.
• Which equation represents Gay-Lussac's law for a gas at constant volume?
• If a fixed amount of gas in a balloon is kept at fixed pressure, how does volume change as temperature increases?
• Which observation demonstrates diffusion of a gas in a classroom?
• Ice density relative to liquid water is best described as:
• Which term refers to transformations of matter from one state to another, such as gas to liquid?
• To move back and forth quickly is to?
• During a phase change at constant temperature, what happens to the temperature?
• Which item is used for supporting a crucible during heating?
• Name three properties used to identify states of matter.
• To flow is to?
• How can you measure the melting point of a solid in a classroom?
• Which term describes a combination of two or more substances that are not chemically bonded?
• To increase in size or amount.
• Which statement best describes the purpose of a melting/boiling point experiment?
• An idea to explain evidence is a?
• Why must temperature be expressed in Kelvin for gas law equations?
• Which properties are used to identify states of matter?
• To heat a liquid until bubbles rise constantly to the surface is to do what?
• Freezing involves which change and energy transfer?
• Which state of matter has a fixed shape and a fixed volume?
• Diffusion occurs most rapidly in which state of matter?
• If the temperature of a sealed container is doubled (in Kelvin) while volume remains fixed, what happens to the internal pressure?
• Vertical columns on the periodic table are called what?
• Which statement best describes the reversibility of phase changes?
• Which statement correctly distinguishes a gas from a vapour?
• Where does evaporation occur?
• Why does water's high specific heat capacity influence climate and weather?
• Which statement correctly describes the shape and volume of liquids vs solids?
• A substance made up of atoms of two or more different elements joined by chemical bonds.
• Why can boats float more readily in seawater than in freshwater?
• At approximately what temperature is water most dense, and why is this relevant to liquids?
• According to Charles' law, what happens to the volume of a gas when temperature increases at constant pressure?
• Which item is used for evaporating a solution?
• Which formula computes the energy required to vaporize a mass m of water at 100°C?
• Which statement best defines partial pressure in a gas mixture?
• A pure substance made of only one kind of atom.
• State a simple experiment to observe melting and boiling points.
• Which term refers to the make-up of something?