Sticky Tape Teaser
In this brainteaser, students discover that sticky tape can pick up electrons as well as dirt, dust, and hair!
In the first part of the activity, both tape A (with C) and B are peeled off the table, collecting electrons from the table. When brought together, they repel each other since they're both negatively charged.
In the second part of the activity, tape C is peeled off tape A, collecting electrons from tape A. This leaves tape A positively charged, which attracts the negatively charged tapes B and C.
Students will be able to:
- Explain how static charge causes materials to attract or repel each other.