STEMScopedia - Heat and Matter

STEMScopedia - Heat and Matter

This is a lesson on your STEMScopedia from Heat and Matter

Reflect

• Our world is made up of elements, mixtures, and compounds called matter

• Matter is affected by heat.

• When you add heat to a substance you are adding thermal energy.

Reflect

• The more thermal energy you add to a substance the faster its molecules move.

• The movement of molecules is known as kinetic energy.

• As the kinetic energy increases the temperature increases.

Heat

• Energy transferred between objects at different temperatures.

• Heat moves from warmer to cooler objects.

Matter

• Anything that has mass and takes up space

Matter

• Matter exists in three states

• Solid

• Liquid

• Gas

• Plasma is another state of matter but that will not be in our investigations.

Thermal Energy

• The total kinetic and potential energy of the particles in the matter.

• The faster the particles move the greater the temperature.

Thermal Energy

• At certain temperatures different forms of matter will melt, freeze, condense, and vaporize.

Total Thermal Energy vs Temperature

• Temperature is the average kinetic energy of all of the particles.

• Total thermal energy is the total kinetic energy of all of its particles.

Multiple Choice

Energy of motion

• Thermal

• Stored

• Kinetic

• Potential

Multiple Choice

Energy transferred between two objects of different temperature.

• Heat

• Kinetic

• Potential

• Mass

Multiple Choice

Process of changing a liquid to a solid

• boiling

• freezing

• condensation

• melting

Multiple Choice

State of matter where particles are tightly packed and move very little.

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

State of matter in which particles are free to flow over each other and take the shape of their container

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

Measure of the average kinetic energy of a substance

• Total Thermal Energy

• Heat Exchange

• Temperature

• Total Internal Energy

Multiple Choice

The state of matter that has the most kinetic energy

• Soild

• Liquid

• Gas

Multiple Choice

The movement of energy from one system to another

• Energy Transfer

• Radiation

• Friction

• Temperature

Multiple Choice

In matter, particles move because they have

• mass

• energy

• volume

• life

Multiple Choice

The measurement of the average motion of the particles that make up any matter is its

• mass

• volume

• temperature

• weight