C6 Friction

This section includes demonstrations on the nature and effects of friction.

C6-01 INCLINED PLANE - FRICTION BOX AND WEIGHTS
Shows that the coefficient of friction does not depend upon the mass of the object although the frictional force does.
C6-02: INCLINED PLANE - FRICTION BLOCK
Demonstrates that the coefficient of static friction is greater than the coefficient of sliding friction, and determines the coefficient of static friction.
C6-03: INCLINED PLANE - FRICTION WITH THREE BLOCKS
Illustrate different coefficients of friction.
C6-04: FRICTION DIRECTION ON INCLINED PLANE
Determine the direction of the frictional force in a possibly ambiguous situation.
C6-05: AIR TRACK - INCLINED PLANE FRICTION
Show that the force of friction depends upon the conditions of the surfaces in contact.
C6-11: SLIDING FRICTION - LECTURE TABLE AND FELT
Show the effect on frictional force of velocity, normal force, and contact area.
C6-12: SKIDDING AUTOMOBILE
Demonstrate the effect of locked wheels on vehicle stability.
C6-13: FRICTION BETWEEN GLASS SURFACES
Demonstrate the increase of friction between two glass surfaces when lubricating surface films are removed.
C6-14: SOCIAL CLIMBER
Illustrate frictional forces in a weird way.
C6-15: SOCIAL DESCENDER - FRICTION TOY
Illustrate frictional forces in a weird way.
C6-16: SLIDING AND STATIC FRICTION
Show that the friction force depends linearly on the normal component of the applied force.
C6-17: FRICTION VS. PULLING ANGLE
Demonstrate how pulling angle affects the frictional force
C6-21: SUSPENDED ROD ON WATER
An elementary problem involving horizontal friction.