Easyphysics
WJEC  - GCSE Science
Physics 1 - Energy
Glossary
Formulae

Did you know? 

The power is usually marked on the electric appliance . A kettle marked with 2 kW means it converts 2000 joules of electrical energy into heat in one second.

 

      

 P1 Power 

Syllabus Summary Questions Answers
 
 1) Complete the following table and show your working:
 Appliance Voltage (V) Current (A) Power (W)
 Fridge 230 10  
 Radio 12  

6
 Mobile phone   0.33

1

 
 2) A lamp is connected to a 230 V supply and a current of 0.26 flows for 5 minutes.

     Calculate the energy transferred to the lamp.