Shadow Clocks, the Forerunners of the Sundial, First Appeared in China

question 17

Multiple Choice

Shadow clocks, the forerunners of the sundial, first appeared in China about …… years ago.

• A)2500
• B)2000
• C)3500
• D)4000

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Definitions:

Schachter and Singer

Psychologists who developed the two-factor theory of emotion, proposing that human emotions consist of two components: physiological arousal and cognitive interpretation.

Epinephrine

A hormone and neurotransmitter also known as adrenaline, involved in regulating visceral functions (e.g., respiration) and in the fight-or-flight response.

Emotional States

The psychological conditions reflecting one's feelings, ranging from happiness and love to anger, fear, and sadness, often influenced by external events or internal thoughts.

Physiological States

Conditions or states of the body and its systems, often referring to the body's response to various stimuli or conditions such as stress, exercise, or illness.