Give few examples of increasing friction at least 3.?

Question

Answer

1) Soles of shoes have grooves and tyres have treads to increase friction.2) Roads are made rough to prevent slipping.3) Handles of cricket bats and tennis bats are made rough for better grip.4) Spikes are there in shoes of mountaineer to get good grip on ice.

Answer

Ways fr and reducing friction

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Helpful frictional forces

For example: friction between our shoes and the floor stop us from slipping. friction between tyres and the road stop cars from skidding. friction between the brakes and wheel help bikes and cars to slow down.

Answer

Increasing Friction

Friction is the force that opposes the motion of objects in contact with each other. It can be both beneficial and detrimental depending on the situation. In some cases, increasing friction can be advantageous, especially when it comes to improving the stability, control, and safety of certain activities or objects. Here are three examples of how friction can be increased:

1. Using Rough Surfaces:
One way to increase friction is by using rough surfaces. When two rough surfaces are in contact, the irregularities on the surfaces interlock, resulting in a larger frictional force. An example of this is the use of sandpaper. Sandpaper has a rough surface that increases the friction between the paper and the object being sanded, allowing for better control and precision.

2. Applying Force:
Applying force can also increase friction. When a greater force is exerted on an object, the normal force between the object and the surface it is in contact with increases. This, in turn, increases the frictional force. For example, when pushing a heavy object, applying more force increases the friction between the object and the ground, making it easier to move.

3. Increasing the Surface Area:
Another way to increase friction is by increasing the surface area of contact. When the surface area is larger, there is more opportunity for interlocking of irregularities, resulting in increased friction. This can be seen in the design of car tires. The treads on the tires have a larger surface area, which improves traction on the road and increases friction, allowing the vehicle to have better control and grip.

Conclusion:
Increasing friction can be achieved through various methods, such as using rough surfaces, applying force, and increasing the surface area of contact. These techniques can be beneficial in improving stability, control, and safety in various activities and objects. It is important to understand the advantages and disadvantages of increased friction in different situations to optimize performance and prevent unwanted consequences.

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