Easyphysics
 WJEC  - GCSE Science
 Physics 1 - Energy

Did you know? 

The Energy-Saver light bulb is 5 times more efficient than an ordinary filament bulb. 

 

      

 P1 Efficiency   

Syllabus Summary Questions Answers

  

    Learning outcome

  • To calculate efficiency.

    Keywords

  • Efficiency - useful energy.