Q:

What factors affect friction?

A:

Quick Answer

Friction is caused by the interactions between the sometimes microscopic roughness of different substances. As a result, friction is primarily affected by the "roughness" of an object. Friction is also affected by the mass or weight of the object as well.

 Know More

Full Answer

Frictional force is proportional to the normal force on an object. To understand the normal force it is important to consider that all forces have an equal and opposite force. In other words, when an object sits on the ground, gravity acts on the object, the object pushes against the ground, and the ground pushes back up. Heavier objects have more friction. Rougher objects also have more surface area. This means that there are more opportunities for the surface to interact with whatever it is rubbing against.

Learn more about Physics

Related Questions

  • Q:

    Why is physics the most basic science?

    A:

    Physics is the most basic science because it is the science of matter, energy and their interactions. Every other hard science, such as biology and chemistry, is merely a study of a subset of physics' general purview since both biology and chemistry are ultimately the study of certain types of matter, energy and their interactions. Nonetheless, other sciences contain enough specialized information that practically speaking, they are separate.

    Full Answer >
    Filed Under:
  • Q:

    What is actual mechanical advantage?

    A:

    Actual mechanical advantage (AMA) is the force that a machine can multiply while subtracting losses from the machine having to overcome friction. Mechanical advantage (MA), on the other hand, is the factor by which a machine multiplies applied force. The mechanical advantage is calculated from the ratio of forces involved or from the ratios of the distances in which they move.

    Full Answer >
    Filed Under:
  • Q:

    What is charging by friction?

    A:

    Charging by friction involves rubbing two different materials together that have different pulls towards electrons, so that one material will pull away electrons when the materials are separated and both will become charged. A common example of charging by friction is rubbing a balloon against hair.

    Full Answer >
    Filed Under:
  • Q:

    What would happen if there was no friction?

    A:

    Without friction, energy transfer would be easier and stopping motion would be more difficult. If there was no friction, there would be no force slowing down motion when two objects rubbed against one another.

    Full Answer >
    Filed Under:

Explore