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Formula Sheet

Heat — Formula Sheet

ICSE · Class 7 · Physics

14 formulas from Heat (ICSE Class 7 Physics) on one page, grouped by topic. Part of the ICSE Class 7 Physics syllabus.

45 questions33 flashcards14 formulas & key relations5 concepts

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An infographic comparing and illustrating the behavior of different types of solid materials (elastic, plastic, ductile, brittle, malleable) under applied stress, showing their deformation and fractur
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14 Entries · 4 Sections

Formulas and Key Relations

1. Heat and Temperature

Heat is a form of energy which flows from a hot body to a cold body when they are kept in contact.

Temperature is a quantity which tells us the degree of hotness or coldness of a body.

SI unit of heat = joule (J)

SI unit of temperature = Kelvin (K)

2. Units and Conversion of Heat and Temperature

1 kcal = 1000 cal

1 cal = 4.2 J (nearly)

1 J = 0.24 cal

t°C = (273 + t) K

°F = (9/5) °C + 32

3. Effects of Heat

Increase in size due to heating = thermal expansion

Effects of heat = change in temperature, change in size or shape, change in state

4. Thermal Expansion in Solids, Liquids and Gases

Liquids and gases have only cubical expansion

Liquids expand much more than solids when heated

Gases expand much more than liquids and solids

Full sheet with units and worked examples

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Frequently Asked Questions

What are the important topics in Heat for ICSE Class 7 Physics?
Key topics in Heat include Heat, Temperature, and Units, Thermometer and Temperature Scales, Effects of Heat, Change of State and Latent Heat. Study these first, then practise questions on each for Class 7 exams.
How many formulas are in Heat?
This sheet lists 14 formulas from Heat, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Heat for Class 7 exams?
Learn the core ideas first, then work through the 45 practice questions on Heat. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Heat

All ICSE Class 7 Physics Formula Sheet

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