Consider the types of relationships you have with people of different racial and ethnic groups (neighbor, work colleague, close friend, spouse or partner). Sociologists use these relationships (and people's attitudes toward them) to measure

social distance

Explanation:

Social distance explains the level of intimacy between two individuals or groups based on the likeness in beliefs and social categories of these individuals or groups. Social distance measurements are observed in groups such as social class, race/ethnicity, gender or sexuality. Example: people of same race or ethnicity have less social distance between one another.

~kinetic ~potential

explanation:

kinetic and potential energies would be types of mechanical energies.