CBSE Class 10 Science Formula for 2026 Exam

Author at PW
February 06, 2026
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The class 10 science formula set consists of essential mathematical expressions and chemical notations used to solve numerical problems and equations. These formulas cover key physics concepts like electricity and light, alongside vital chemistry reactions. Mastering them helps you calculate physical quantities accurately, ensuring you secure high marks during your final board examinations and competitive school tests.

Check Out: CBSE Class 10 Books

1. Easy Physics Class 10 Science Formula

Physics math can feel hard, but it gets simple once you learn the right math rules. Most problems in your big exam come from chapters about Light and Power. You need to learn how to move the letters in these rules to find things like focus, power, or how hard electricity flows.

Light: Mirror and Lens Rules

  • Mirror Rule: $1/f = 1/v + 1/u$ (Use this for curved mirrors).

  • Lens Rule: $1/f = 1/v - 1/u$ (Be careful with the minus sign here).

  • Zooming (m): For mirrors, $m = -v/u$. For lenses, it is $m = v/u$.

  • Lens Power (P): $P = 1/f$ (The 'f' must be in meters).

Power and Electricity

  • The Main Rule: $V = IR$ (Voltage equals current times resistance).

  • Wires in a Row: $R_s = R_1 + R_2 + R_3...$

  • Wires Side-by-Side: $1/R_p = 1/R_1 + 1/R_2 + 1/R_3...$

  • Heat Rule: $H = I^2Rt$ (This tells you how hot a wire gets).


2. Best Class 10 Science Formula Sheet Chemistry

Chemistry is not just reading stories; it is about finding weights and matching equations. A class 10 science formula sheet chemistry list helps you remember the names of things like salt or soda. These are very helpful for your first chapter on "Chemical Reactions."

Common Names and Short Codes

Real Name

Short Code

Nickname

Calcium Carbonate

$CaCO_3$

Chalk/Limestone

Sodium Hydroxide

$NaOH$

Caustic Soda

Sodium Bicarbonate

$NaHCO_3$

Baking Soda

Calcium Oxychloride

$CaOCl_2$

Bleaching Powder

How to Remember Metals

We use a funny poem to remember which metal is stronger. It goes: "Kedar Nath Bali (Ca) Mali Aloo Zara Feke..." This helps you guess which metal will push another one away. Also, remember that the stuff you start with must weigh the same as the stuff you end with.

Check Out: CBSE Class 10 Mathematics Handwritten Notes

3. Help From Class 10 Science Formula Sheet PDF

Many kids like a class 10 science formula sheet pdf because you can look at it quickly on a phone. Keeping all the rules in one spot stops you from feeling scared before the test. We suggest you print it out and put it on your wall where you see it every day.

Units You Must Know

Quick Tip: If you forget the unit, you will lose points! Always write the ending word.

  • Voltage: Volt (V)

  • Current: Ampere (A)

  • Resistance: Ohm ($\Omega$)

  • Power: Watt (W)

  • Energy: Joule (J)


4. Simple Class 10 Science Formula Sheet Prashant Kirad

Lots of students use the class 10 science formula sheet prashant kirad style because it makes hard things easy. It uses short notes instead of long, boring pages. You don't need big words; you just need to know how one thing changes another thing.

Top Tips for Learning

  • The Meter Rule: Always change centimeters to meters before you start the math.

  • The Minus Rule: Remember that the focus of a cave-like mirror is always minus.

  • Don't Mix Them: Do not mix up 'u' (where the object is) and 'v' (where the picture is).

  • Daily Writing: Write five rules every morning to help your brain remember.

Numbers That Never Change

  • Light Speed: $3 \times 10^8 m/s$.

  • Water Number: 1.33 (This is for the Refractive Index).

Check Out: CBSE Class 10 Sample Papers

5. Solve Math With Class 10 Science Formula

To get the best marks, you must use the class 10 science formula the right way in word problems. Teachers want to see the rule, the numbers you put in, and the answer with its unit. If you leave out the unit, you lose half a mark!

How to Solve a Problem

  1. Find the Numbers: Write down what the book tells you (like $u = -20cm$).

  2. What is Missing?: Pick what you need to find out.

  3. Pick Your Tool: Find the right rule on your class 10 science formula sheet.

  4. Do the Math: Put the numbers in and work it out slowly.

  5. Add the Unit: End your answer with words like Watts or Ohms.

Things to Watch Out For

  • Time: Do not use minutes; always change them to seconds.

  • Flipping: In side-by-side wire math, don't forget to flip the fraction at the very end.

  • Signs: Forgetting a minus sign is the biggest mistake kids make.

Check Out: CBSE Class 10 Previous Year Papers

Class 10 Science Formula FAQs

Which rules are used the most?

The Mirror rule, Lens rule, and Ohm’s Law are the ones you will see the most in the test.

How can I learn the class 10 science formula sheet?

Stick the page on your wall and read it every night before you go to sleep.

Is chemistry hard to learn?

No, it is just like learning names for things, like Baking Soda or Bleaching Powder.

Do I have to show how the rules are made?

Yes, showing how wire rules are made is a big question that gives you many marks.

Where can I get a class 10 science formula sheet pdf?

The PW Store has these ready for you to download for free to help your study.

Would you like me to show you an easy way to solve a mirror math problem step-by-step?

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CBSE Class 10 Science Formula for 2026 Exam