Featured in PASCO’s Physics through Inquiry Teacher Guide

Physics through Inquiry Teacher Guide

(PS-2873C)

Features over 30 inquiry based labs covering the core topic areas of mechanics, electricity and magnetism, optics, thermodynamics and more.

Ohm's Law

Lab Summary

Use a voltage sensor and current sensor to investigate the relationship between current, voltage, and resistance in a circuit.

Theory

Students investigate the relationship between current, voltage, and resistance in a circuit.

Method

Students gain experience conducting the following procedures:

  • Measuring the current through a resistor in a circuit as the voltage applied to the resistor changes.
  • Comparing the slopes of Voltage versus Current graphs for two different resistors.
  • Measuring the current through a light bulb in a circuit as the voltage applied to the bulb changes.
  • Comparing the plot of Voltage versus Current for a circuit with a light bulb to the voltage versus current plots that result from two different resistors.

Sensors / Equipment Used:

PASPORT Voltage-Current Sensor

(PS-2115)

Allows students to safely measure voltage and current simultaneously without overloading the sensor. For use with PASPORT Interfaces.

Materials Used:

Charge/Discharge circuit board

Patch cord 4 mm banana plug ~ 5

AA battery ~ 2

Your Bundle Options:

Option 1:

Physics Starter Sensor Bundle

(PS-2923)

A sensor bundle specifically designed to get you started using probeware in your physics lab. Also: perform 26 of the 37 Lab Activities from Physics through Inquiry.

Option 2:

Physics Standard Sensor Bundle

(PS-2931B)

Contains the probeware needed to perform all 37 lab activities in the Physics through Inquiry lab manual.

Interface Required

This experiment may require software and an interface for data collection.