A scatterplot is used to represent a correlation between two variables. There are two types of correlations: positive and negative. Variables that are positively correlated move in the same direction, while variables that are negatively correlated move in opposite directions.
Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases with increases in the speed that these particles move. Geothermal energy is the thermal energy in the earth. Motion energy is energy stored in the movement of objects
Forms of Kinetic Energy. Kinetic energy appears in different forms. Chemical energy occurs when a chemical reaction causes atoms and molecules to move. The movement of electrons is electrical energy. When an object's molecules move, heat energy is produced. Moving light particles, or waves, are light energy.