A Fan Attached to an Ice Sailcraft Stalled on a Windless

question 21

Multiple Choice

A fan attached to an ice sailcraft stalled on a windless day blows air into the sail that bounces backward upon impact.The boat can

• A)then move in the direction of the wind impact force.
• B)not move by this wind impact.
• C)then move,but in the opposite direction of the wind impact force.

---

Definitions:

Conditioning

A process of behavior modification in which a subject learns to respond in a desired manner to a previously neutral stimulus that has been repeatedly presented along with an unconditioned stimulus that elicits the desired response.

Behaviourist

Referring to the school of psychology that focuses on observing and controlling behavior as the main source of psychological research and theory.

Historical View

The perspective that looks at past events and trends to understand how they influence the present and potentially the future.

Religious

Relating to or devoted to the belief in the worship of a god or gods, or the practices and rituals associated with such belief.