A battery lights a bulb. Describe the energy changes involved in the process.

Answer

Battery Lights a bulb - Teachoo.png

 

When a battery lights a bulb, first energy transformation takes place in the battery and then in the bulb.

 

In the battery, the chemical energy gets converted into electrical energy.

Battery: Chemical energy Electrical energy

 

In the bulb, the electrical energy from the bulb gets converted into heat energy and then into light energy.

Bulb: : Electrical energy Heat energy Light energy.

 

So, Energy Changes are

Chemical energy Electrical energy Heat energy Light energy

  1. Class 9
  2. Chapter 11 Class 9 - Work and Energy

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.