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Why is it difficult to strike a match on a smooth surface?
It is difficult to strike a match on a smooth surface because the friction needed to ignite the match head is lacking. Matchboxes and striker surfaces are designed to provide enough friction for the match head to ignite when rubbed against them. Smooth surfaces do not create enough friction to generate the heat required to light the match.
Name one organ in your body which has a large surface area?
The skin is an organ in the body that has a large surface area as it covers the entire external surface of the body.
What does the slope of the static friction vs normal force represent?
The slope of the static friction vs normal force represents the coefficient of static friction. This coefficient indicates the maximum frictional force that can be exerted between two surfaces before one begins to slide over the other.
What organelle has a lot of surface area?
The endoplasmic reticulum (ER) has a lot of surface area due to its membrane structure, which folds and extends extensively throughout the cell. This large surface area allows for important cellular processes such as protein synthesis and lipid metabolism to occur efficiently.
What are the differences between dorsal and plantar surfaces of the foot?
The dorsal surface of the foot is the top part, while the plantar surface is the bottom part. The dorsal surface is where the toes and the top of the foot are located, while the plantar surface is where the sole of the foot is. The dorsal surface is typically more sensitive and has a higher concentration of nerves, while the plantar surface is thicker and tougher to withstand weight and pressure.
What is external friction?
External friction is the resistance that occurs when an object moves through or along a surface due to external forces, such as air resistance or friction between the object and the surface it is moving on. It is a force that opposes the motion of an object and can affect the speed and efficiency of the object's movement.
Is friction an external force?
Yes, friction is an external force that opposes the relative motion or tendency of motion between two surfaces in contact. It is caused by the interaction of molecules at the surface of the two objects.
What is surface friction is?
Surface friction ALWAYS point parallel to the surface and opposite motion. There must be a normal force for there to be friction
The amount of friction depends on what?
Friction depends on the surface that the object is going against. If an applied force is used to push a box on a ground, the friction is the surface of the ground, may the ground be rough or smooth, there is a force that goes against the applied force. Air friction is also a type of friction that many physics question does not account for, because it is a virtually small force.
How do surface affect friction?
friction
How does roughness of surface that are touching affect the friction between the surface?
the rougher the surface is, the more friction there will be
How does the surface of an object affect friction?
the smoother a surface is, the less friction it produces.
Can a cylinder slide?
Yes, a cylinder can slide along a surface if there is minimal friction present between the cylinder and the surface. The ability of a cylinder to slide is dependent on factors such as surface texture, material of the cylinder, and external forces acting on it.
When an object roll over a surface the kind of friction that occurs is called friction?
When an object rolls over a surface, the friction that occurs is called rolling friction. Rolling friction is lower than sliding friction, which occurs when an object slides along a surface. Rolling friction results from the deformation of the object and the surface it is rolling on.
What is the friction that exits between a surface sliding on another surface is called?
If the two surfaces are moving relative to each other, then the friction between them is Kinetic Friction. Prior to the surfaces moving there was Static Friction between them.
When an object rolls over a surface the kind of friction that occurs is called friction.?
The friction that occurs is Rolling Friction
What is the force that resist the movement of one surface past another surface is called?
A force that resists motion of one surface across another surface is called FRICTION(or FRICTIONAL FORCE)
