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प्रश्न
Select the correct alternative.
Friction is increased if
पर्याय
an oil is sprayed
the surfaces are made wet
the surfaces are made dry
the surfaces are polished
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उत्तर
the surfaces are made dry
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संबंधित प्रश्न
Give two examples of situations in which you push to change the state of motion of objects.
In the following situations identify the agent exerting the force and the object on which it acts. State the effect of the force in case.
Squeezing a piece of lemon between the fingers to extract its juice.
In the following situation identify the agent exerting the force and the object on which it acts. State the effect of the force in case.
Taking out paste from a toothpaste tube.
Name the term used for the push or pull?
Explain the meaning of the term force.
State if the following statement is true or false. Correct the statement if it is false.
It is possible that a force applied to an object may not bring any change in it.
Match the following.
| Column A | Column B |
| 1. Rolling friction | a. making grooved designs |
| 2. Static friction | b. regular oiling |
| 3. Reducing friction | c. a book placed on a tabletop |
| 4. Increasing Friction | d. wheels of a car |
______ is an ancient Indian astronomer.
A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goalkeeper to
A horse continues to apply force in order to move a cart with a constant speed. Explain why?
