Electric Current and Electric Circuits

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⚠️ This material is an adapted Physics activity designed to explore Electric Current and Electric Circuits in a visual, progressive, and accessible way.

Number of questions in the activity:

8 adapted questions + complete answer key, distributed across 3 activity pages.

The sequence begins with the recognition of a battery, wire, switch, and light bulb, explores the flow of current in a closed circuit, and connects the main electrical quantities to their units. It then introduces guided calculations using Ohm’s Law, compares series and parallel circuits, explores the relationship between wire length and electrical resistance, organizes the stages involved in lighting a bulb, and concludes with a simple electrical power calculation.

Target audience:

The material can be used in Middle School and High School, depending on the student’s curricular adaptation needs.

It may be especially helpful for students with mild Intellectual Disabilities, difficulties in Physics, difficulties with abstraction, and reading and interpretation difficulties.

It is particularly suitable for students who can already recognize numbers and perform basic mathematical operations, but have difficulty when electricity concepts are presented only through texts, formulas, and abstract representations.

Format:

Printable color PDF, containing:

🔹 8 adapted questions;
🔹 3 activity pages;
🔹 components of an electric circuit;
🔹 closed circuits and electric current;
🔹 electrical quantities and their units;
🔹 Ohm’s Law with guided calculations;
🔹 series and parallel circuits;
🔹 electrical resistance and wire length;
🔹 how a light bulb works;
🔹 electrical power;
🔹 word banks;
🔹 illustrated circuits and diagrams;
🔹 matching, fill-in, multiple-choice, sequencing, and calculation activities;
🔹 material available entirely in UPPERCASE;
🔹 BNCC-related skills;
🔹 complete visual answer key.

⏱️ By purchasing this material, you save approximately 6 hours and 38 minutes of preparation time, receiving an activity that is already adapted, illustrated, formatted, available in uppercase, and accompanied by a complete answer key.

Content covered:

The activity begins with the concrete components of a circuit: battery, wires, switch, and light bulb. From these elements, students learn that in a closed circuit, electric current can flow.

Next, the material explores the relationships electric current – ampere (A), voltage – volt (V), electrical resistance – ohm (Ω), and electrical power – watt (W).

The activity then progresses to simple mathematical applications, using U = R · i to explore Ohm’s Law and P = U · i to calculate electrical power. It also addresses the visual difference between series and parallel circuits and the relationship between wire length and electrical resistance.

Important information for teachers:

In the first question, students observe a simple circuit and match the words BATTERY, WIRE, SWITCH, and LIGHT BULB to the corresponding components. The activity therefore begins with visual recognition of the elements that will be used throughout the following questions.

In the second question, students observe a closed circuit with the light bulb turned on and a visual representation of moving charges. Using a word bank containing CURRENT, RESISTANCE, and LENGTH, students complete the statement that in a closed circuit there is a flow of electric current.

In the third question, students match four electrical quantities to their respective units: electric current, voltage, electrical resistance, and electrical power with ampere, volt, ohm, and watt. The matching format reduces the need to write the terms independently.

In the fourth question, students encounter the first mathematical application. A resistor has R = 10 Ω, and the current is i = 2 A. The activity provides the relationship U = R · i and organizes the substitution as U = 10 · 2, leaving students to complete the result, 20 V. In this way, the calculation is presented in a partially structured format.

In the fifth question, students observe two circuits with light bulbs and write SERIES or PARALLEL. The visual comparison allows them to recognize the two configurations before exploring their properties in greater depth.

In the sixth question, two wires are made of the same material and have the same thickness, but they have different lengths. Students identify that the longer wire has greater resistance and complete the relationship using a word bank containing length, color, and temperature.

In the seventh question, students determine how the light bulb turns on by numbering three events in the correct order: first, electric current passes through the filament; then, the filament heats up; finally, the light bulb emits light. This activity develops an understanding of a physical cause-and-effect sequence.

Finally, in the eighth question, an electrical device operates with U = 10 V and i = 2 A. The activity provides the expression P = U · i, shows the substitution P = 10 · 2, and asks students to complete the result, 20 W, reinforcing the calculation in an organized and predictable way.

Key features:

✅ Begins with visible circuit components before introducing formulas.

✅ Develops concepts and calculations in a progressive and structured way.

✅ Uses illustrated circuits and word banks as learning support.

✅ Provides varied response formats through matching, selecting, sequencing, filling in, and calculating.

✅ Explores Ohm’s Law and electrical power while maintaining meaningful mathematical content.

✅ Available entirely in UPPERCASE, with BNCC-related skills and a complete answer key.