Driving question : How can you explain the intriguing behaviour of bulbs?
In this activity students use the current and voltage sensors and investigate power delivered to a resistor by investigating the behavior of bulbs in a dc circuit.
Topic: Electric circuits,
Concepts: I(V) Characteristic, Ohm's Law, Resistance,
Grade level: Middle School (11-14 years),
Activity type: Data logging,
Sensors: Current sensor, Voltage sensor (differential),
Interface requirements: Two analog sensor inputs,
The Student Worksheet gives investigation instructions for students.
The Teacher Notes includes teacher commentaries such as didactical approach, exemplary questions, assignments and data analysis.
The Science Background describes the scientific principles that underlie the activity.
Coach Activity/Result file can be opened in the Coach 7 Program. This requires Coach 7 to be installed on your computer.