Can you throw a baseball without touching it? No, your hand needs to push the baseball forward as your throw it. Objects often interact like this, through contact. The baseball will then stop moving after contacting the ground or a catcher’s mitt. But can two objects interact when they aren’t in contact, when they are instead, at a distance from each other? Using PocketLab, you can explore how this might be possible.
In this experiment, students will:
1. Draw a conclusion, supported by data collected in your investigation, about whether objects can exert forces on each other at a distance.
2. Use the magnetometer to determine the relationship between the magnetic field strength and its distance from a dipole magnet.
Download PDF for complete lab activity