Year 6 Science – Electricity

In Science, Year 6 have been investigating how electricity behaves in circuits and how this affects light intensity.

Electricity: Resistance in Circuits

They explored what happened when they added more components such as bulbs, buzzers and switches to a circuit. They found that as the number of components increased, the resistance also increased, meaning less current was able to flow through the circuit. As a result, bulbs became dimmer and buzzers quieter.

Light: Measuring Light Intensity

Using data loggers, they measured light intensity in circuits with different numbers of bulbs, recording how brightness changed. Year 6 discovered that as more bulbs were added, the light intensity from each bulb decreased because the electrical energy was shared between them.

Conclusion

Overall, the investigations showed that adding more components to a circuit increases resistance, which reduces the flow of current, and that adding more bulbs causes the available electrical energy to be shared, resulting in lower light intensity per bulb.

Well done Year 6!

Year 6 Science - Electricity