Public learning track
Investigating Voltage, Cells, and Component Power
3rd Grade · Science · UK National Curriculum
7 lessons
Goal
Explain and investigate how changing the number and voltage of cells alters lamp brightness, buzzer volume, and motor speed.
Featured Diagrams
Understanding Voltage and Cell Ratings
7 lessons
0 of 7 done
- 1Understanding Voltage and Cell RatingsUp nextStart
- 2Adding More Cells or Bulbs in SeriesPremiumNot started yet
- 3How Cell Voltage Affects Lamp BrightnessNot started yet
- 4How Cell Voltage Affects Buzzer VolumeNot started yet
- 5How Cell Voltage Affects Electric Motor SpeedNot started yet
- 6Investigating Over-Voltage: Why Bulbs Blow and Fuses ProtectNot started yet
- 7Predicting Brightness and Volume from Circuit VoltageNot started yet
Standards Covered
- science.ks3.y2.t5.s1National Curriculum (England) · Science · Year 3 (KS2) · Grade 3associate the brightness of a lamp or the volume of a buzzer with the number and voltage of cells used in the circuit
- science.ks3.y2.t5.s2National Curriculum (England) · Science · Year 3 (KS2) · Grade 3compare and give reasons for variations in how components function, including the brightness of bulbs, the loudness of buzzers and the on/off position of switches
Curriculum Framework
3rd Grade · Science · UK National Curriculum
1
8 lessons
Circuit Symbols and Scientific Diagrams
Recognise, draw, and interpret standard scientific circuit symbols and schematic diagrams for simple circuits.
2
7 lessons
Investigating Voltage, Cells, and Component Power
Explain and investigate how changing the number and voltage of cells alters lamp brightness, buzzer volume, and motor speed.
3
7 lessons
Circuit Variations, Switches, and Component Function
Compare and explain variations in component behaviour caused by adding components, wire lengths, and switch positions.
4
5 lessons
Troubleshooting, Testing, and Designing Practical Circuits
Diagnose circuit faults, apply conductivity knowledge, and design working circuits for real-world devices.