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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