Heat Transfer Occurs by Natural Convection Because Change in Temperature

question 23

Multiple Choice

Heat transfer occurs by natural convection because change in temperature causes difference in

• A)Viscosity
• B)Density
• C)Thermal conductivity
• D)Heat capacity

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Definitions:

Motivation

The process that initiates, guides, and maintains goal-oriented behaviors.

Behavior

The actions or reactions of an organism, often in relation to its environment, which can be observable and measurable.

Arousal Theory

A theory in psychology that suggests people are motivated to maintain an optimal level of arousal, not too high or too low, for their personal best performance.

Excitement

A feeling of great enthusiasm and eagerness, often accompanied by physiological signs such as increased heart rate and heightened senses.