The year would be shorter. The year would be longer. The day would be shorter. The day would be longer.
I gave my students this multiple choice question: What change would occur if Earth's rate of rotation significantly increased?

Only one answer is correct among these 4 choices:
- The year would be shorter.
- The year would be longer.
- The day would be shorter.
- The day would be longer.

Could you tell me which one is correct?

The day would be shorter.