Welcome to the Scientific Terminology and Definitions MCQs with Answers. In this post, we are sharing Scientific Terminology and Definitions Multiple Choice Questions and Answers in Everyday Science section for various competitive exams in Pakistan. Each question offers a chance to enhance your knowledge regarding Scientific Terminology and Definitions online MCQs Test.
What is the term for the measure of the average kinetic energy of particles in a substance?
A) Temperature
B) Pressure
C) Volume
D) Density
Which term describes a substance that cannot be broken down into simpler substances by chemical means?
A) Element
B) Compound
C) Mixture
D) Solution
What is the name given to the process by which a liquid turns into a gas?
A) Evaporation
B) Condensation
C) Freezing
D) Melting
Which term refers to a change in which a new substance is formed?
A) Chemical change
B) Physical change
C) Phase change
D) Mechanical change
What is the term for the amount of matter in an object?
A) Mass
B) Weight
C) Volume
D) Density
Which term describes the force exerted by a fluid on an object immersed in it?
A) Buoyancy
B) Pressure
C) Tension
D) Friction
What is the term for the energy possessed by an object due to its motion?
A) Kinetic energy
B) Potential energy
C) Thermal energy
D) Chemical energy
Which term refers to the ratio of the mass of a substance to its volume?
A) Density
B) Mass
C) Volume
D) Weight
What is the name given to the smallest unit of an element that retains the properties of that element?
A) Atom
B) Molecule
C) Ion
D) Compound
Which term describes the amount of space occupied by a substance?
A) Volume
B) Mass
C) Density
D) Pressure
What is the term for a mixture in which the composition is uniform throughout?
A) Homogeneous mixture
B) Heterogeneous mixture
C) Solution
D) Compound
Which term refers to the process of changing a solid directly into a gas without passing through the liquid state?
A) Sublimation
B) Deposition
C) Condensation
D) Evaporation
What is the term for a substance that speeds up a chemical reaction without being consumed?
A) Catalyst
B) Reactant
C) Solvent
D) Product
Which term describes the quantity of heat required to raise the temperature of a unit mass of a substance by one degree Celsius?
A) Specific heat capacity
B) Latent heat
C) Thermal energy
D) Heat of vaporization
What is the term for the process by which a gas turns into a liquid?
A) Condensation
B) Evaporation
C) Sublimation
D) Freezing
Which term refers to a substance formed when two or more elements are chemically bonded together?
A) Compound
B) Mixture
C) Solution
D) Element
What is the term for the amount of energy required to change a substance from a liquid to a gas?
A) Heat of vaporization
B) Latent heat
C) Specific heat capacity
D) Heat of fusion
Which term describes a mixture in which different components are not uniformly distributed?
A) Heterogeneous mixture
B) Homogeneous mixture
C) Solution
D) Compound
What is the term for the process of a liquid turning into a solid?
A) Freezing
B) Melting
C) Condensation
D) Evaporation
Which term refers to the change in the state of matter from a solid directly to a gas?
A) Sublimation
B) Melting
C) Condensation
D) Freezing
What is the term for the amount of heat energy required to change a substance from a solid to a liquid?
A) Heat of fusion
B) Latent heat
C) Specific heat capacity
D) Heat of vaporization
Which term describes a solution in which the solute is fully dissolved in the solvent?
A) Saturated solution
B) Unsaturated solution
C) Supersaturated solution
D) Homogeneous mixture
What is the term for the change in the state of matter from a gas directly to a solid?
A) Deposition
B) Sublimation
C) Condensation
D) Evaporation
Which term describes the process by which heat energy is transferred through direct contact between substances?
A) Conduction
B) Convection
C) Radiation
D) Reflection
What is the term for the energy required to break a bond in a molecule?
A) Bond energy
B) Activation energy
C) Heat of reaction
D) Specific heat capacity
Which term refers to a reaction in which energy is absorbed from the surroundings?
A) Endothermic reaction
B) Exothermic reaction
C) Chemical equilibrium
D) Catalytic reaction
What is the term for the force per unit area exerted on the walls of a container by a gas?
A) Pressure
B) Volume
C) Temperature
D) Density
Which term describes the process by which heat energy is transferred through the movement of fluids?
A) Convection
B) Conduction
C) Radiation
D) Reflection
What is the term for a solution that contains more solute than it would under normal conditions?
A) Supersaturated solution
B) Saturated solution
C) Unsaturated solution
D) Homogeneous mixture
Which term refers to the heat energy required to change a substance from a liquid to a gas?
A) Heat of vaporization
B) Heat of fusion
C) Specific heat capacity
D) Latent heat
What is the term for the amount of heat energy required to change the temperature of a substance?
A) Specific heat capacity
B) Heat of vaporization
C) Latent heat
D) Heat of fusion
Which term describes the process of a gas turning into a liquid?
A) Condensation
B) Evaporation
C) Freezing
D) Melting
What is the term for a chemical reaction that releases energy in the form of heat?
A) Exothermic reaction
B) Endothermic reaction
C) Equilibrium reaction
D) Reversible reaction
Which term refers to a mixture in which different components are uniformly distributed?
A) Homogeneous mixture
B) Heterogeneous mixture
C) Solution
D) Compound
What is the term for the point at which a substance changes from a liquid to a gas?
A) Boiling point
B) Melting point
C) Freezing point
D) Condensation point
Which term describes the energy required to change a substance from a liquid to a gas at its boiling point?
A) Heat of vaporization
B) Heat of fusion
C) Specific heat capacity
D) Latent heat
What is the term for a mixture where particles are large enough to settle out over time?
A) Suspension
B) Solution
C) Colloid
D) Emulsion
Which term refers to a substance that dissolves another substance to form a solution?
A) Solvent
B) Solute
C) Mixture
D) Compound
What is the term for the temperature at which a liquid turns into a solid?
A) Freezing point
B) Boiling point
C) Melting point
D) Condensation point
Which term describes the process of changing a gas into a solid without passing through the liquid phase?
A) Deposition
B) Sublimation
C) Condensation
D) Freezing
What is the term for the process by which heat is transferred through electromagnetic waves?
A) Radiation
B) Convection
C) Conduction
D) Reflection
Which term describes the heat energy needed to change a substance from a solid to a liquid?
A) Heat of fusion
B) Heat of vaporization
C) Specific heat capacity
D) Latent heat
What is the term for a substance that can dissolve other substances to form a solution?
A) Solvent
B) Solute
C) Mixture
D) Compound
Which term refers to the heat energy required to change a substance from a gas to a liquid?
A) Heat of condensation
B) Heat of vaporization
C) Specific heat capacity
D) Heat of fusion
What is the term for a homogeneous mixture in which particles are dissolved in a liquid?
A) Solution
B) Suspension
C) Colloid
D) Emulsion
Which term describes the process by which a substance changes from a liquid to a solid?
A) Freezing
B) Melting
C) Condensation
D) Sublimation
What is the term for a substance that is dissolved in a solvent to form a solution?
A) Solute
B) Solvent
C) Mixture
D) Compound
Which term describes a type of mixture where particles are too small to settle out and remain suspended?
A) Colloid
B) Suspension
C) Solution
D) Emulsion
What is the term for the quantity of heat needed to raise the temperature of one gram of a substance by one degree Celsius?
A) Specific heat capacity
B) Latent heat
C) Heat of vaporization
D) Heat of fusion
Which term refers to the amount of heat required to change a substance from a solid to a liquid at its melting point?
A) Heat of fusion
B) Heat of vaporization
C) Specific heat capacity
D) Latent heat
What is the term for a solution that contains less solute than it has the capacity to dissolve?
A) Unsaturated solution
B) Saturated solution
C) Supersaturated solution
D) Homogeneous mixture
Which term describes the process by which a substance changes from a liquid to a gas at a temperature below its boiling point?
A) Evaporation
B) Condensation
C) Freezing
D) Melting
What is the term for the amount of heat energy required to change a substance from a gas to a liquid?
A) Heat of condensation
B) Heat of vaporization
C) Specific heat capacity
D) Latent heat
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