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ME-9837A

D i s c o v e r C e n t r i p e t a l F o r c e K i t

012-15873A

After completing the lab, students should derive the full equation for the centripetal force:

Questions

1. Using words and a mathematical expression, describe the relationship between force and velocity in

uniform circular motion.

2. Using words and a mathematical expression, describe the relationship between mass and velocity in

uniform circular motion.

3. Using words and a mathematical expression, describe the relationship between radius and velocity

in uniform circular motion.

4. Combine the three relationships above to create one relationship for force, mass, velocity, and

radius. Solve it for force.

5. How would you convert this expression into an equation?

6. What is the constant of proportionality for this equation? Explain.

7. How could such an equation be used?

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Содержание ME-9837A

Страница 1: ...Instruction Manual 012 15873A Discover Centripetal Force Kit ME 9837A...

Страница 2: ...ipment List 3 Introduction 4 Equipment Setup 5 The Classic Centripetal Force Lab 6 Velocity versus Force 8 Velocity versus Mass 9 Velocity versus Radius 10 Questions 11 Demonstrations 12 Technical Sup...

Страница 3: ...ed Equipment Model Number 1 Yellow string 73 m ME 9876 2 Rubber stoppers sizes 6 8 and 10 3 Hollow tube 1 4 Plastic ties 10 Additional Equipment Recommended Model Number Safety goggles Marking pen For...

Страница 4: ...e centripetal force It is important for students to identify the agent for each force that contributes to the centripetal force net force for an object moving in uniform circular motion The table belo...

Страница 5: ...eriment 4 Tie a loop at the other end of the string and hook a mass through the loop Important Please follow these SAFETY guidelines Put on safety goggles Make sure that no one is standing close to av...

Страница 6: ...elocity v The independent variables are the radius r the hanging weight determined by the hanging mass mh and the spinning mass ms When the velocity is plotted as a function of one of the independent...

Страница 7: ...city of the spinning mass measure the period T and the radius r To find the period divide the time of the 10 full rotations by 10 To calculate the linear velocity v use the following equation In order...

Страница 8: ...the corresponding velocities for different hanging masses A graph of Force versus Velocity should yield a square root graph and a relationship of where k1 is a constant Sample Data The following data...

Страница 9: ...nd the corresponding velocity for different spinning masses A graph of Velocity versus Ms should yield a graph with the relationship of where k2 is a constant Sample Data The following data are for a...

Страница 10: ...he corresponding velocity for different radii A graph of Velocity versus Radius should yield a graph with a relationship of where k3 is a constant Sample Data The following data is for a hanging mass...

Страница 11: ...cal expression describe the relationship between mass and velocity in uniform circular motion 3 Using words and a mathematical expression describe the relationship between radius and velocity in unifo...

Страница 12: ...the Force Sensor are roughly equal to the centripetal force Have an assistant hold the sensor Move it up or down to change the radius Demonstration Using a Newton Spring Scale Set up the Discover Cen...

Страница 13: ...nd class rooms and are not sold for profit Reproduction under any other circumstances without the written consent of PASCO scientific is prohibited Revised 1 18 Trademarks PASCO and PASCO scientific a...