The state in which two bodies in physical contact with each other have identical temperatures.

The amount of space that a substance or object occupies.

The energy associated with an object because of its position, shape, or condition.

A tiny or minute portion of matter.

The quantity or amount of matter which an object contains.

The process by which heat is directly transmitted through a substance when there is a difference in temperature between adjoining regions, without movement of the material.

A form of matter that has a definite shape and volume.

The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

A form of matter that flows, has a fixed volume, and an indefinite shape.

The penetrating rays and particles emitted by a heat source.

A form of matter that takes the shape and volume of its container; has no definite shape or volume.

A material system in which mass or energy cannot be transferred to the environment.

The capacity for doing work or producing heat.

A material system in which mass or energy can be lost or gained from the environment.

Energy contained within a system that is responsible for its temperature.

A measure of the average kinetic energy of particles in matter; determines the direction of heat transfer.

The energy an object has because of its motion.

Energy that transfers from one object to another because of the temperature difference between the objects

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Adding heat will cause particles to move

Adding particles to a closed system will cause the temperature to

How many significant digits in the number 2000?

Particles will move slowest in a

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