Phet Simulation Lab
Forces and Motion
1. What quantities do you need to calculate the force of static friction for an object on a flat,
horizontal surface? (2)
2. What quantities do you need to calculate the force of kinetic friction for an object on a flat,
horizontal surface? (2)
3. Using data from the Phet simulation fill in the following chart. (4)
Mass (kg)
µs
µk
Force to
Start the
Object
Moving (N)
File Cabinet
Force to
Keep the
Object
Moving (N)
Sleepy Dog
Refrigerator
Textbook
4. Show a sample calculation of how to calculate the force of static friction and the force of
kinetic friction for the file cabinet. (8)
5. Fill in the following chart. (4)
Force of Static Friction (N)
Force of Kinetic Friction (N)
File Cabinet
Sleepy Dog
Refrigerator
Textbook
6. What do you notice about the force of static friction as compared to the force of kinetic
friction? (2)
7. Devise a method to determine the mass and coefficients of friction for the mystery object.
Record your method below using the format for a proper scientific procedure. (numbered,
detailed, past-passive) (5)
8. Collect you data and present it using a neat, organized format. (2)
9. Perform calculations to determine the unknown values for the mystery object. (8)
10. Write a conclusion about your findings for the mystery object. (3)
Total ______/40