Energy — How Things Work · Class 5 The World Around Us
Practise 10 short and long answer questions on Core Concepts and Application from Energy — How Things Work. Try writing your own answer first, then tap the question to compare it with the model answer and read the explanation behind it.
Energy is what makes things move, light up, produce sound, do work and change temperature.
This definition is given in the opening explanation of energy.
Energy can help an object move, produce light or sound, do work, or become warmer or cooler. Any three are acceptable.
The chapter lists these effects as examples of energy at work.
A kitchen contains many activities, such as cooking food, that depend on energy. Observing it helps students ask how everyday work is done.
The chapter begins by asking students to observe a kitchen and record what they notice and wonder.
The Sun provides light and heat.
The chapter uses sunlight as a familiar example when introducing energy.
Students can notice objects moving, giving light, making sounds or changing temperature. They can then ask what makes each change happen and connect their observations to energy.
The chapter uses observation and questions to introduce the concept of energy.
Thinking about how things work helps us recognise the energy and processes behind everyday activities. It can also encourage careful and efficient use of resources.
The chapter connects familiar objects and activities to the wider idea of energy.
Energy is involved when food is cooked, a fan moves air, a light shines or an appliance produces sound. These examples show that energy enables many everyday actions.
The chapter names movement, light, sound, heating and cooling as effects of energy.
They could list devices that use energy, observe when lights and fans are switched on, and note when they are actually needed. They could then suggest simple ways to avoid unnecessary use.
The textbook encourages observing everyday energy use and using energy carefully.
Students should switch off the fan and lamp when they are not needed, following school rules. They can also remind classmates to check switches before leaving. This applies the idea of using energy carefully and efficiently.
The chapter encourages careful energy use and connects energy with movement and light.
Energy can make objects move, as a fan does; produce light, as a lamp does; and change temperature, as in cooking or heating. It can also produce sound. These examples show that energy is involved in many activities rather than only one kind of work.
The chapter defines energy through the different effects it produces.