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Centripetal Force Apparatus

Centripetal Force Apparatus

This graph shows the tension force in the restraining string (that is, the centripetal force) as a function of the square of the angular velocity of the system. Data were collected by giving the armature a spin, and then allowing it to slow down. Since angular velocity squared is on the horizontal axis, the slope is the product of the mass and radius of the spinning test mass. The three traces correspond to three different masses.

This graph shows the tension force in the restraining string (that is, the centripetal force) as a function of the square of the angular velocity of the system. Data were collected by giving the armature a spin, and then allowing it to slow down. Since angular velocity squared is on the horizontal axis, the slope is the product of the mass and radius of the spinning test mass. The three traces correspond to three different masses.

Centripetal Force Apparatus

The Centripetal Force Apparatus has been replaced by the Go Direct Centripetal Force Apparatus

The Centripetal Force Apparatus allows you to investigate the relationship between centripetal force, angular velocity, mass, and radius.

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A force sensor measures the centripetal force exerted on a mass as it moves in a circle. A photogate can be used to measure the angular speed. Different masses can be added to the platform and positioned at variable radii. The platform can be driven by a falling mass. The apparatus also accommodates the Vernier Wireless Dynamic Sensor System or Go Direct® Force and Acceleration Sensor to measure force, which provides the best set of data. Sensors are sold separately.

 

Centripital Force Apparatus - Tech Tips with Vernier
Centripetal Force Apparatus - Tech Tips (9:06)

Requirements

This apparatus does not include the necessary sensors. Here are sensors and combinations of sensors that can be used:

Dual-Range Force Sensor and Photogate
OR
Go Direct Force and Acceleration
OR
Dual-Range Force Sensor and Go Direct Photogate

What's Included

  • Rectangular Frame
  • Support Legs (2)
  • Rotating Assembly consisting of Rotational Shaft, Encoder Wheel, 3-Step Pulley, Rotating Beam, Bearing Housing
  • Sliding Carriage to hold the test masses
  • Counterbalance Carriage to balance the rotating beam
  • Swivel Assembly (connects Sliding Carriage to a Dual-Range Force Sensor)
  • Ultra Pulley
  • Ultra Pulley Bracket (preinstalled on Assembly)
  • Photogate Bracket with 1/4 x 20 mounting screw (preinstalled on Assembly)
  • Dual-Range Force Sensor Bracket (preinstalled on Assembly)
  • 50 g masses (2)
  • 100 g masses (4)
  • Hook (attaches a Go Direct® Force and Acceleration Sensor to the Sliding Carriage)
  • Mounting Screw and T Nut to secure a Go Direct® Force and Acceleration Sensor
  • User manual

Accessories

AccessoryOrder CodePriceQuantity
Centripetal Force Apparatus Moment of Inertia Accessory KitCFA-MIK$219.00
Centripetal Force Apparatus Sensor BracketCFA-SBK$19.00
Replacement PartOrder CodePriceQuantity
Counterbalance Carriage for Centripetal Force ApparatusesFC-CFA$5.00
Sliding Carriage for Centripetal Force ApparatusesSC-CFA$14.00
Replacement Masses for Centripetal Force ApparatusM-CFA$42.00
Replacement String and Swivel for Centripetal Force ApparatusSA-CFA$29.00

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Warranty

5-year limited warranty
See our warranty policy

Replacement Parts

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Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications.

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