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NCERT Solutions for Class 5th The World Around Us Chapter 7 Five things that run on electricity — Activity 5

Book page 121 Updated on2026-09-19

Q1.
Walk around your home or classroom. Identify five things that run on electricity. Fill in the following table.
S. No.DeviceWhat it does?What it requires? (light/sound/heat/movement/cooling/other)
1.FanBlows airMovement
2.
3.
4.
5.
6.
Answer

Walk round with a pencil and look for anything with a plug, a wire or a wall switch. Here is the table filled in. Row 1 is the book's example.

S. No.DeviceWhat it does?What it requires?
1.FanBlows airMovement
2.Tube lightLights up the roomLight
3.Radio / televisionPlays songs and shows programmesSound (and light, for the picture)
4.Electric ironPresses the creases out of clothesHeat
5.RefrigeratorKeeps milk and vegetables from spoilingCooling
6.Mixer-grinderGrinds chutney and masalaMovement

Your list will depend on your own home or classroom. A water pump, a mobile charger, a doorbell, a cooler, a computer or a projector are all correct answers.

What the last column really means: it is asking what the device gives us out of the electricity — a push and a turn (movement), brightness (light), a noise (sound), warmth (heat) or coldness (cooling). The electricity is the same in every wire. What changes is the machine that uses it.
Did you know? Using less energy to do the same work is called energy efficiency. An LED bulb gives the same light as an old bulb but uses much less electricity. So changing one bulb saves electricity every single day.
Q2.
From the above examples, did you notice that electricity can be used for movement, and producing sound, light and heat?
Answer

Yes. From this one table it is clear that electricity can do every job that energy does — it can move things, make sound, give light, make heat, and even make things cool.

Electricity Movement — fan, mixer Light — tube light, LED Sound — radio, bell Heat — iron, geyser Cooling — fridge, AC
One kind of energy in the wire, five different jobs coming out of it.
Why this is important: Because electricity can do all five jobs, one supply of electricity can run a whole house, a whole school, and whole factories. The chapter reminds us that industries use electricity to run machines that make the clothes, toys, books, food and even the scooters and cars we use.
But use it with care: electricity is very useful and also dangerous. Never touch wires or the parts of a plugged-in device. Never put fingers, pens or sticks into a socket. Stay away from broken wires, fallen poles, electric boxes and transformers, and tell an adult at once. Never try to repair anything yourself.
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