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प्रश्न
Tick the most appropriate answer.
Friction is offered by
विकल्प
solids
liquids
gases
all of these
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उत्तर
all of these
APPEARS IN
संबंधित प्रश्न
Friction depends on the ______ of surfaces.
Write true or false.
Liquids offer more friction than the gases.
Name the two kinds of forces in nature.
List three ways of reducing friction.
Tick the most appropriate answer.
If you pour some oil onto a floor, the friction would
State if the following statement is true or false. Correct the statement if it is false.
Friction is offered by all the three states of matter.
Match the following.
| Column I | Column II | |
| a) | Static friction | viscosity |
| b) | Kinetic friction | least friction |
| c) | Rolling friction | objects are in motion |
| d) | Friction between the liquid layers | objects are sliding |
| e) | Sliding friction | objects are at rest |
Explain how friction can be minimized.
Analogy
Objects placed at rest on earth: ______:: Bodies slide over the surface on other body: ______.
Assertion: We can live very happily if friction is not present in nature.
Reason: The airplane shape is streamlined to reduce the effort of frictional force.
