Unit 3 Vocab

random motion

• movement in all directions and at different speeds.
• energy due to motion.
• the amount of thermal energy it takes to increase the temperature of 1 kg of a material by 1ºC.
• the movement of substances from an area of higher concentration to an area of lower concentration.

kinetic energy

• stored energy due to the interactions between objects or particles
• energy due to motion
• the result of the motion of all the particles, and the distance and attractions between those particles in the system
• the transfer of thermal energy from a region of higher temperature to a region of lower temperature; can also refer to the amount of energy transferred during this process

potential energy

• stored energy due to the interactions between objects or particles
• energy due to motion
• the result of the motion of all the particles, and the distance and attractions between those particles in the system
• the transfer of thermal energy from a region of higher temperature to a region of lower temperature; can also refer to the amount of energy transferred during this process

thermal energy

• stored energy due to the interactions between objects or particles
• energy due to motion
• the result of the motion of all the particles, and the distance and attractions between those particles in the system
• the transfer of thermal energy from a region of higher temperature to a region of lower temperature; can also refer to the amount of energy transferred during this process

temperature

• the transfer of thermal energy from a region of higher temperature to a region of lower temperature; can also refer to the amount of energy transferred during this process
• a small particle that is the building block of matter
• matter with a composition that is always the same
• the measure of the average kinetic energy of the particles in a material

atom

• the transfer of thermal energy from a region of higher temperature to a region of lower temperature; can also refer to the amount of energy transferred during this process
• a small particle that is the building block of matter
• matter with a composition that is always the same
• the measure of the average kinetic energy of the particles in a material

substance

• the transfer of thermal energy from a region of higher temperature to a region of lower temperature; can also refer to the amount of energy transferred during this process
• matter with a composition that is always the same
• a small particle that is the building block of matter
• the measure of the average kinetic energy of the particles in a material

heat

• the transfer of thermal energy from a region of higher temperature to a region of lower temperature; can also refer to the amount of energy transferred during this process
• matter with a composition that is always the same
• a small particle that is the building block of matter
• the measure of the average kinetic energy of the particles in a material

element

• a substance containing atoms of two or more different elements chemically bonded together
• a group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound
• a small particle that is the building block of matter
• a substance that consists of only one type of atom

compound

• a substance containing atoms of two or more different elements chemically bonded together
• a group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound
• a small particle that is the building block of matter
• a substance that consists of only one type of atom