Investigate how light intensity varies with distance from a point source
Master CP16: Inverse Square Law (Light) with unlimited practice questions. Test your knowledge of method, variables, equipment, and more.
8 practice areas available
Describe the procedure step by step
Identify and explain variables
Name and justify equipment choices
Calculate and interpret data
Plot, analyse and interpret graphs
Identify sources of error
Suggest how to improve accuracy
Identify hazards and precautions
CP16: Inverse Square Law (Light) is a required practical for Edexcel A-Level Physics. This practical investigate how light intensity varies with distance from a point source
Students are expected to understand the method, identify and control variables, use appropriate equipment, analyse results, draw graphs, identify sources of error, suggest improvements, and consider safety precautions.
Questions on required practicals frequently appear in Edexcel A-Level Physics exams and can be worth significant marks. Practice with our AI-generated questions to master this practical.
Continue practicing with these other required practicals
Determine the acceleration of a freely-falling object using an electromagnet and light gates or similar timing method
Determine the frequency of stationary waves on a string by varying length, tension, and mass per unit length
Determine the Young modulus of a material by measuring stress and strain
Determine the speed of sound in air using a two-beam oscilloscope and microphones
Having trouble connecting to our servers. Some features may be limited.