Technical data

Centripetal force/centrifugal force with Cobra SMARTsense

Article no: P6000667

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Principle

The examination of the dependencies of the centripetal force is a classic experiment of mechanics. Here and in experiments with rotational movements in general radio transmission offers many advantages. Conventional set-ups of experiments to measure the centripetal force mostly measure the force through a cord to stationary measuring units outside. If a spring scale is used to measure the values, greater speed also increases the radius of the path due to the increasing elongation of the spring. Therefore, the examination of the centripetal force with altered radii or angular speeds while setting the other quantity to a fixed value is rather complicated to perform. The Cobra SMARTsense Sensor-Unit Force with elongation measurement strips simplifies this experiment. Radio transmission additionally simplifies the set-up of this experiment, since an external fixation of the sensor is not necessary as can be seen in figure 1. So it is easy to examine the dependencies of the centripetal force on angular velocity, radius and mass.

Learning objectives

Determination of the relation between centripetal force and angular velocity
Determination of the relation beween centripetal force and rotating mass
Determination of the relation between centripetal force and radius of the circular movement

Benefits

Wireless connection with Cobra SMARTsense Force & Acceleration
Automatic sensor identification and loadable pre-settings with the software measureApp
High precision allows to determine the rotational frequency
Variable adjustment of the rotational velocity
Set-up optionally provides the possibility to perform the classical variant of the experiment with an analogue spring balance

Scope of delivery

Cobra SMARTsense Force & Acceleration - Sensor for measuring force and acceleration ±50 N / ±16 g (Bluetooth + USB)	12943-00	1
Fish line, l. 100m	02090-00	1
Cart for measurements and experiments	11060-00	1
Holding pin	03949-00	1
Weight, 150 g, for 11060.00	11060-01	2
Slotted weight, silver bronze, 50 g	02206-03	2
Centrifugal force apparatus	11008-00	1
Driving belt	03981-00	2
Bearing unit	02845-00	1
Motor, with gearing, 12 VDC	11610-11	1
PHYWE Power supply, 230 V,DC: 0...12 V, 2 A / AC: 6 V, 12 V, 5 A	13506-93	1
measureLAB, multi-user license	14580-61	1
Tripod base, for 1 rod	02002-55	1
Tripod base, triangular, for 6 rods	02007-55	1
Stand rods, stainless steel, various sizes	02030-15	1
Connecting cable, 32 A, red, various lengths	07363-01	1
Connecting cable, 32 A, blue, various lengths	07363-04	1
Bench clamp expert	02011-00	1
Stand rods, stainless steel, various sizes	02030-15	1