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Ellen Funk
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Does wax increase or decrease FRICTION?
Actually, waxing skis increases friction. Wax is not slippery. If you wanted less friction you could oil your skis.
What are the factors which affect the force of friction?
Friction equals the coefficient of friction times the normal force. Friction increases as the roughness of the materials increases. It also increases as the force pushing the materials together increases.
Reducing friction in a machine increases or decreases?
Deceasing friction increases efficiency and reduces heat loss.
Investigate-how friction increases with increase of size of an object?
The force of friction on an object is equal to the coefficient of friction times the force perpendicular to the surface (normal force). When the mass of an object increases, the normal force increases, and the force of friction also increases. However, because the equation does not involve surface area, increasing surface area has no affect on the force of friction.
What happens if the net force on an object increases?
The amount of friction increases.
Does wax increase or decrease FRICTION?
Actually, waxing skis increases friction. Wax is not slippery. If you wanted less friction you could oil your skis.
What are the factors which affect the force of friction?
Friction equals the coefficient of friction times the normal force. Friction increases as the roughness of the materials increases. It also increases as the force pushing the materials together increases.
Does friction increases as rotation increases?
No. Friction is a function of Normal Force and the friction coefficient, nothing else.
What is a feature of a car that increases friction?
the front boot of the car increases the friction on the car
Reducing friction in a machine increases or decreases?
Deceasing friction increases efficiency and reduces heat loss.
Why does oil remove rust?
It does not. It simply reduces some of its impacts. When iron or steel rusts the surface becomes rougher, which increases friction and prevents moving parts from working as they should. The oil provides lubrication, which decreases friction and restores normal function.
Investigate-how friction increases with increase of size of an object?
The force of friction on an object is equal to the coefficient of friction times the force perpendicular to the surface (normal force). When the mass of an object increases, the normal force increases, and the force of friction also increases. However, because the equation does not involve surface area, increasing surface area has no affect on the force of friction.
How friction increased?
With increased surface areas in contact, friction increases.
What happens if the net force on an object increases?
The amount of friction increases.
Pressing two objects together with more force friction?
Increases friction
How are friction and force related?
friction increases the amount of force necessary to do work
Why does friction increases when speed increases using the big idea of particles?
heat
