Experimental Studies with a Sensor Device to Explore the Factors Which will Affecting the Magnitude of Centripetal Force

Using experimental to find out the relations of the Magnitude of Centripetal Force among Mass( m),Angular Velocity( ω) and Radius( r) is a very important experimental in High School's Physics. Due to the shortages of old lab equipment,the new equipment designed with a PASCO Force Sensor to measure the Magnitude of Centripetal Force,Variable Speed Motors also applied in order to change the Angular Velocity of Metal Pellets during circular motion,and measure the speed of Motor through Hall Sensors,the mass and rotating radius of small metal balls become quantitative changes. New equipment are quantitatively capable to explore the relations of the Magnitude( F) of Centripetal Force among Mass( m),Angular Velocity( ω) and Radius( r),the experimental results are accuracy,demonstrate effectively,teachers and students could operate easily,it is worth promoting.