Physics
Grade-9
Easy
Question
Which friction will be felt in the air?
- Static friction
- Sliding friction
- Rolling friction
- Fluid friction
Hint:
Between fluid layers (liquids including gases) that are moving in relation to one another, fluid friction develops.
The correct answer is: Fluid friction
Fluid friction will be felt in the air.
- The frictional force caused by moving an object over air or gases is liquid or fluid friction.
- It resists the motion of an object moving over the air.
- For example; friction is caused by moving airplanes in the sky.
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