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WorksheetsMS-PS1-4: Thermal Energy and Phase Changes
Total questions: 20
Worksheet time: 10mins
What is a gas?
A phase of matter that has a definite shape and volume.
A phase of matter that has no definite shape or volume and expands to fill its entire container.
A phase of matter that is always solid and rigid.
A phase of matter that can only exist at very high temperatures.
What is temperature?
A measure of the average kinetic energy of the particles in a substance, indicating how hot or cold it is.
The amount of heat energy in a substance.
The state of matter of a substance at a given time.
The pressure exerted by the particles in a gas.
Bonds
The attractive forces that hold particles together, being very strong in solids and weaker but present in liquids.
A type of investment that represents a loan made by an investor to a borrower.
A financial instrument that represents ownership in a company.
A method of transferring energy between particles.
What is the freezing point?
The temperature at which a substance changes from a gas to a liquid.
The specific temperature at which a substance changes its state from a liquid to a solid under a given pressure.
The temperature at which a substance begins to boil.
The temperature at which a substance remains in a solid state.
What does the Conservation of Energy state?
Energy can be created and destroyed.
Energy can only be transferred from one form to another.
Energy can be created but not destroyed.
Energy is always lost in every transformation.
What is the definition of Force?
An interaction that, when unopposed, will change the motion of an object; essentially a push or a pull.
A measure of the amount of matter in an object.
The rate at which work is done or energy is transferred.
A type of energy that is stored in an object.
What is Energy Transfer?
The process of converting energy from one form to another.
The movement of energy from one place, object, or system to another, such as from a hot object to a cold one.
The storage of energy in a system for later use.
The generation of energy from renewable sources.
What is Sublimation?
The phase change of a substance directly from the solid to the gas state, without passing through the liquid state.
The process of a gas turning into a liquid.
The transition of a solid to a liquid state.
The conversion of a liquid into a solid state.
What is Conduction?
The transfer of thermal energy from one particle to another through direct contact, typically from hotter to colder areas.
The process of heat transfer through fluids due to the movement of the fluid itself.
The transfer of energy through electromagnetic waves without the need for a medium.
The process of energy transfer through the movement of electrons in a conductor.
What is Freezing?
The phase change process in which a substance transitions from a liquid to a solid by removing energy.
The process of heating a solid to turn it into a liquid.
The process of a gas turning into a liquid by adding energy.
The process of a solid turning directly into a gas without becoming a liquid.
Any substance that has mass and occupies space, making up all physical objects in the known universe.
A type of energy that can be converted into mass.
A phenomenon that occurs when two objects collide.
A measurement of the amount of space an object takes up.
What is a Model?
A representation used to help think about and understand scientific ideas that are difficult to observe directly.
A physical object that can be touched and manipulated.
A theory that explains all phenomena in a scientific field.
A set of rules that govern scientific experiments.
What does the verb 'expand' mean?
To decrease in volume or size
To increase in volume or size as a result of heating
To remain the same size
To compress tightly together
The process of a solid turning into a gas.
The phase change process in which a substance transitions from a solid to a liquid by absorbing energy.
The process of a liquid turning into a solid.
The phase change process in which a substance transitions from a gas to a liquid.
A measure of how much mass is contained in a given volume, often expressed as mass per unit volume.
The weight of an object in air.
The volume of an object divided by its surface area.
The temperature at which a substance changes state.
Deposition
The process of a substance changing from a solid to a gas without becoming liquid first.
The phase change of a substance directly from the gas to the solid state, without passing through the liquid state.
The transformation of a liquid into a gas at its boiling point.
The process of a solid becoming a liquid upon heating.
A phase of matter that has a definite volume but takes the shape of the bottom of its container.
A state of matter that has no definite shape or volume.
A form of matter that is rigid and maintains its shape.
A type of matter that can be compressed easily.
What is a thermometer?
An instrument used for measuring and indicating temperature, usually by the expansion or contraction of a liquid.
A device used for measuring humidity levels in the air.
A tool for measuring atmospheric pressure.
An instrument used for measuring wind speed.
What is Kinetic Energy?
The energy that an object possesses due to its motion; faster movement means more kinetic energy.
The energy stored in an object due to its position or state.
The energy released during a chemical reaction.
The energy associated with the temperature of an object.
What is the definition of Volume?
The amount of two-dimensional space that a substance occupies.
The amount of three-dimensional space that a substance or object occupies, measured in units like cubic centimeters.
The weight of a substance measured in grams.
The temperature of a substance measured in degrees Celsius.
