When an Ice Skater Twirling on the Point of a Skate

question 19

Multiple Choice

When an ice skater twirling on the point of a skate draws her arms in she ends up whirling faster. This is because

• A) rotational energy is conserved.
• B) linear momentum is conserved.
• C) angular momentum is conserved.
• D) a net external torque acts on the skater.

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Definitions:

Social Cognition

The process of perceiving, interpreting, and processing information about the social world and its inhabitants.

Tight-knit Groups

Social groups characterized by close relationships among members, shared values, and often a sense of unity and loyalty.

Same-gender Relationships

Romantic, sexual, or emotional attractions and relationships between individuals of the same gender, encompassing both identity and behavior.

Cognitive Miser

A theory suggesting that humans, aiming to reduce mental effort, rely on simple and cost-efficient strategies rather than on more sophisticated and effortful processing.