Physics
Grade-9
Easy
Question
Which friction will be felt in mercury?
- Static friction
- Sliding friction
- Rolling friction
- Fluid friction
Hint:
Fluid friction is caused between fluid layers that are moving relative to each other.
The correct answer is: Fluid friction
Fluid friction will be felt in mercury.
- Mercury is a metal that is liquid at room temperature.
- The frictional force caused by a liquid is fluid friction.
- When the mercury is poured or contacted to another surface it is resisted by liquid or fluid friction.
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