Questions: Unit 9 Exam Which of the following observed phenomena can be explained with viscosity? Water forms droplets as it lands on a puddle. A bowling ball sinking more slowly through molasses than through water. Separating ethanol from water by distillation.

Unit 9 Exam Which of the following observed phenomena can be explained with viscosity? Water forms droplets as it lands on a puddle. A bowling ball sinking more slowly through molasses than through water. Separating ethanol from water by distillation.
Transcript text: Unit 9 Exam Which of the following observed phenomena can be explained with viscosity? Water forms droplets as it lands on a puddle. A bowling ball sinking more slowly through molasses than through water. Separating ethanol from water by distillation.
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Solution

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Solution Steps

Step 1: Identify the Phenomena Related to Viscosity

Viscosity is a measure of a fluid's resistance to deformation or flow. We need to identify which of the given phenomena can be explained by this property.

Step 2: Analyze Each Phenomenon
  1. Water forms droplets as it lands on a puddle: This phenomenon is primarily explained by surface tension, not viscosity.
  2. A bowling ball sinking more slowly through molasses than through water: This phenomenon is directly related to viscosity. Molasses has a higher viscosity than water, which causes the bowling ball to sink more slowly.
  3. Separating ethanol from water by distillation: This process is based on differences in boiling points, not viscosity.

Final Answer

The phenomenon that can be explained with viscosity is: \[ \boxed{\text{A bowling ball sinking more slowly through molasses than through water}} \]

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