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Physics formula list. - Class 12 PDF Download
| Download Physics Formula List | ||
| Physical Quantity | Formula | Remarks |
| Equations of motion at constant acceleration |  |  |
| Density |  |  |
| Weight | W = mg | W = weight, N m = mass, kg g = gravitational acceleration, m/s2 or N/kg |
| Force | F = ma | F = force, N m = mass, kg a = acceleration, m/s2 |
| Moment of a force about a point |  |  |
| Object in equilibrium with parallel forces acting on it |  |  |
| Work done | W = Fd | W = work done, J F = force, N d = displacement, m |
| Kinetic energy | K.E.= 1/2 mv2 | K = kinetic energy, J m = mass, kg v = velocity, m/s |
| Potential energy | P.E. = mgh | Ep = potential energy, J m = mass, kg g = gravitational acceleration, N/kg or m/s2 h = gain/loss in height |
| Efficiency |  | |
| Power |  | P = power, W W = work done or energy transferred, J t = time, s E = energy transferred/used, J Q = thermal energy transferred, J |
| Pressure |  |  |
| Liquid pressure |  |  |
| Boyle's Law |  |  |
| Specific heat capacity |  |  |
| Specific latent heat of vaporization or fusion |  |  |
| Wave equation |  |  |
| Refractive index |   | n = refractive index i = angle in air/vacuum r = angle in medium c = speed of light in vacuum, m/s v = speed of light in medium, m/s |
| Critical angle |  |  |
| Amount of charge | Q = It | Q = charge, C t = time, s |
| Ohm's Law | V = IR | V = potential difference, V I = current, A  |
| Potential difference | V = W/Q | V = potential difference, V W = work done between two points, J Q = charge, C |
| emf |  |  |
| Electrical power | P = IV = I2R | P = power, W I = current, A V = potential difference, V (voltage) |
| Electrical energy | E = VIT | E = electrical energy, J |
| Resistance |  | p = resistivity, ohm l = length of wire, m A = cross-sectional area of wire, m2 |
| Transformer equations |   |  |
FAQs on Physics formula list. - Class 12
| 1. What are the important physics formulas that students should know for Class 12? |  |
Ans. Some of the important physics formulas that students should know for Class 12 are:
1. Newton's Second Law of Motion: F = ma, where F is the force, m is the mass, and a is the acceleration.
2. Ohm's Law: V = IR, where V is the voltage, I is the current, and R is the resistance.
3. Coulomb's Law: F = k(q1q2/r^2), where F is the electrostatic force, q1 and q2 are the magnitudes of the charges, r is the distance between them, and k is the electrostatic constant.
4. Snell's Law: n1sinθ1 = n2sinθ2, where n1 and n2 are the refractive indices of the two media, and θ1 and θ2 are the angles of incidence and refraction, respectively.
5. Einstein's Mass-Energy Equivalence: E = mc^2, where E is the energy, m is the mass, and c is the speed of light in vacuum.
| 2. How can I memorize physics formulas effectively for my Class 12 exams? | |
Ans. Memorizing physics formulas effectively for Class 12 exams can be done by following these strategies:
1. Understand the derivation: Instead of blindly memorizing the formulas, try to understand the derivation of each formula. This will help you remember the logic behind them.
2. Practice numerical problems: Solve a variety of numerical problems using the formulas. By applying them repeatedly, you will naturally remember the formulas.
3. Create flashcards: Write down the formulas on flashcards and revise them regularly. Keep flipping through the flashcards to reinforce your memory.
4. Make mnemonic devices: Create mnemonic devices or acronyms to associate with the formulas. This can make them easier to remember.
5. Teach someone else: Explaining the formulas to someone else can help solidify your own understanding and memory of the formulas.
| 3. Can I use a formula sheet during Class 12 physics exams? | |
Ans. The permission to use a formula sheet during Class 12 physics exams depends on the specific rules and regulations set by your educational institution or examination board. Some exams may allow you to use a formula sheet, while others may not. It is important to check the exam guidelines or consult with your teacher to know the rules regarding formula sheets for your particular exam.
| 4. Are all the physics formulas mentioned in the article applicable for Class 12 exams? | |
Ans. Yes, all the physics formulas mentioned in the article are applicable for Class 12 exams. These formulas cover various topics taught in Class 12 physics, such as mechanics, electromagnetism, optics, and relativity. It is advisable to consult your specific curriculum or syllabus to ensure that you have covered all the required formulas for your exams.
| 5. Can I derive the formulas during my Class 12 physics exams instead of memorizing them? | |
Ans. In most Class 12 physics exams, it is expected that students have already learned and memorized the necessary formulas. While some exams may allow you to derive the formulas during the exam, it is generally more time-consuming and may not be feasible within the given time limit. Therefore, it is recommended to memorize the formulas beforehand to save time and ensure a smoother exam experience.
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