In this experiment, students will use a force sensor to discover the relationship between an object's weight and its mass.

• PASPORT
• 500 Interface
• 750 Interface

1. Support the mass hanger so that it does not pull on the Force Sensor, then push the zero (tare) button.
2. Place a 50-gram mass on the mass hanger. Record the weight shown on the digits display in the data table.
3. Also record the amount of mass hanging from the Force Sensor in the data table. Don't forget to add the mass of the hanger.
4. Repeat steps 2-3 with increasing amounts of hanging mass for a total of 5 data pairs.

• DataStudio

1. Write a sentence to describe the meaning of the weight of an object. Keep in mind that the weight was measured by the force sensor.
2. Write a sentence to describe the meaning of the mass of an object.
3. In general, what pattern do you notice between weight of an object and its mass?
4. What is the physical meaning of the slope for the weight-mass graph? (Hint: Look at the units!)
5. What is the physical meaning of the vertical intercept for the weight-mass graph?
6. Starting with y=mx+b, write an equation that represents the relationship between weight and mass. Don't forget to include units on all numbers!
7. Using this equation, what would be the mass of an object that weighed 900 N?
8. What would be the weight of an object with a mass of 55.2 Kg?
9. What would happen to the weight and mass of an object, if it were taken to our Moon? Explain.