The braking system on a car depends on lots of friction between the brake pads and the brake disk.
Lots of friction is needed in car brakes to slow down or stop the vehicle effectively, in shoe soles to provide traction and prevent slipping, and in rock climbing equipment to secure climbers on the rock surface.
The force of friction needs to touch an object to have an effect. Friction occurs when two surfaces are in contact and one surface resists the motion of the other surface. It is this resistance that allows friction to have an effect on objects in contact.
Rubber has lots of friction because it has a high coefficient of friction, meaning that it can grip surfaces effectively. The uneven surface of rubber molecules creates more contact points with other surfaces, resulting in greater friction. Additionally, rubber is elastic and can deform slightly to conform to the surface it is in contact with, increasing the contact area and therefore the friction.
Objects with smooth surfaces or lubrication between them tend to have less friction. In a vacuum or in microgravity environments, there is also less friction between objects.
two (wink wink) blubbery surfaces rubbing against each other if you know what I mean
Ice has little friction. Sandpaper has lots of friction.
Tires, grips, pedals and brakes needs to have high friction, while all rotating parts needs to have low friction.
Fluid friction.
it can create lots of heat
Lots of friction is needed in car brakes to slow down or stop the vehicle effectively, in shoe soles to provide traction and prevent slipping, and in rock climbing equipment to secure climbers on the rock surface.
When you read a Horror Novel lots of friction on it
when motion needs to be resisted
The force of friction needs to touch an object to have an effect. Friction occurs when two surfaces are in contact and one surface resists the motion of the other surface. It is this resistance that allows friction to have an effect on objects in contact.
Rubber has lots of friction because it has a high coefficient of friction, meaning that it can grip surfaces effectively. The uneven surface of rubber molecules creates more contact points with other surfaces, resulting in greater friction. Additionally, rubber is elastic and can deform slightly to conform to the surface it is in contact with, increasing the contact area and therefore the friction.
Objects with smooth surfaces or lubrication between them tend to have less friction. In a vacuum or in microgravity environments, there is also less friction between objects.
two (wink wink) blubbery surfaces rubbing against each other if you know what I mean
You want lots of friction to prevent slipping when walking on icy surfaces, to slow down a moving object like a car or bicycle, or to grip a pen or pencil when writing.