2 factors that increase static friction?
Could it be weight or the ground?
Coefficient of static friction and weight.
You're on the right track! Weight does play a role in increasing static friction, but the ground surface also has an impact. Let me explain further.
Static friction is the force that resists the relative motion or impending motion between two surfaces in contact, when there is no actual sliding occurring. It arises due to the microscopic irregularities and interlocking between the surfaces.
There are two main factors that affect the magnitude of static friction:
1. The weight or normal force: The normal force is the force exerted by a surface perpendicular to the contact point. In this case, it is typically the weight of an object pressing down on a surface. As the weight or normal force increases, the downwards force between the surfaces also increases, resulting in a stronger interlocking and thus greater static friction force.
2. The coefficient of friction: The coefficient of friction is a property that describes the interaction between two surfaces. It depends on the materials in contact and the roughness of the surfaces. Different materials and surface textures have different coefficients of friction. A higher coefficient of friction implies a stronger interlocking between surfaces and thus greater static friction.
Now, when it comes specifically to factors that increase static friction, a heavier object will have a greater weight or normal force, thereby increasing the static friction. Additionally, rougher surfaces or surfaces with higher coefficients of friction will also result in increased static friction.
So, to summarize, the two factors that increase static friction are the weight (or normal force) and the coefficient of friction, which is influenced by the properties of the materials and the roughness of the surfaces in contact.