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Force of Kinetic Friction Pre-Lab What factors affect the amount of friction between two surfaces? Force of Friction Normal Force Types of Surfaces Surface Area Velocity Force of Kinetic Friction Pre-Lab Data Studio What factors affect the amount of friction between two surfaces? FN Force of Friction FT FForce probe Normal Force Fg mg FT F fk Types of Surfaces Surface Area Velocity Fg Force Probe Force of Kinetic Friction Pre-Lab What factors affect the amount of friction between two surfaces? FN D Force of Friction FT FForce probe I Normal Force Fg mg I Types of Surfaces Surface Area FT F fk Velocity Fg Purpose: To create graphical and mathematical representations of the relationship between the force of friction, the normal force, and the types of surfaces. Force of Kinetic Friction Pre-Lab Purpose: To create graphical and mathematical representations of the relationship between the force of friction, the normal force, and the types of surfaces. • Open the Data Studio file Friction vs. Normal Force. • Mass the loose friction tray and record below. Do not separate the plastic tray from the force probe! • Remember to tare (zero) the force probe with nothing attached to it before your first trial. Tare Button Force of Kinetic Friction Pre-Lab Purpose: To create graphical and mathematical representations of the relationship between the force of friction, the normal force, and the types of surfaces. • Open the Data Studio file Friction vs. Normal Force. • Mass the loose friction tray and record below. Do not separate the plastic tray from the force probe! • Remember to tare (zero) the force probe with nothing attached to it before your first trial. • Start with just the two friction trays, and then add 100 g = 0.100 kg into the friction trays for each additional set. • Keep a single black bar mass on top of the constant velocity cart at all times. • You must select the region of the graph for each trial that corresponds to the constant velocity part of the motion to measure the force of kinetic friction.
