Question

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

Answer 1

●A battery has stored chemical energy. The chemical energy is converted into electrical energy during lighting of bulb.  •So, a battery converts chemical energy into electrical energy. The filament in the bulb becomes white hot and gives out light. Electrical energy is converted into heat and light energy.   ●Thus, the energy changes involved in this process can be written as follows: ●Chemical energy —> Electrical energy —> Heat energy + Light energy. ________________________________ Hope that it helps you ;)

Answer 2

Dear Student,

◆ Answer -

Energy changes involved in the process of lighting bulb by a battery are

Chemical energy → Electrical energy → Light energy

● Explaination -

• Initially chemical energy is stored in the battery.
• When switch is on, chemical energy is converted into electrical energy and current passes through the circuit.
• When current reaches the bulb, electrical energy is converted into chemical energy.
• Some amount of electrical energy is also converted to heat energy.

Thanks dear. Hope this helps you...