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Centripetal force demonstrator based on Bluetooth technology

LAN Rong;High Middle School of Liuzhou;  
A centripetal force demonstrator based on Bluetooth transmission was made.The ball mass,the centripetal force,linear velocity,radius velocity and angular velocity of the circular motion were collected by the mechanical sensor,the infrared ranging sensor and the photoelectric gate.The collected signals were sequentially shown.The relationships between the centripetal force and the mass of the ball,the radius of the circular motion,and the angular velocity could be explored by the control variable method,and the formula of centripetal force was verified qualitatively.
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