static

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Coulomb Force on Water

coulomb force on water1

coulomb force on water 2

Charge teflon rod with fake fur (shown in above photo) by rubbing together.

When charged rod is brought into the proximity of water stream, attraction between water and charged rod will cause stream to deflect.

  • Rod and fur located in L01, section A-1.
  • Bucket with hole, and tub, located in L35, section G-3.

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Static Friction Incline

static friction incline

 

  • Friction prevents the metal washer on incline from slipping. Washer will begin to slide down plane when angle is great enough (one can show that the coefficient of friction is equal to the tangent of the angle when the washer just begins to slip). Materials include: rubber, glass, wood, and teflon.
  • Use angle ruler (shown in photo) to measure angle.
  • Materials located in L02, section B3. Angle ruler in L45, with rulers.
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Turntable

 

Turntable Demo Picture

  • Used in uniform circular motion lab, coefficient of static
    friction is calculated and then used to predict maximum rpm at which car will
    remain on table.
  • Adjust rpm with 5 amp, regulated DC power supply.

Location

  • Turntable and car in L02, section B4.
  • Power supply in L35, section F1.