NEET Exam > NEET Notes > Physics Class 11 > Mnemonics: Units & Measurements
Mnemonics: Units & Measurements | Physics Class 11 - NEET PDF Download
| Table of contents |
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| 1. Physical World |
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| 2. Seven Fundamental Quantities |
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| 3. Systems of Units |
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| 4. Applications of Dimensional Analysis |
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| 5. Two Supplementary Units |
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| 6. Scientific Notation |
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MNEMONICS are powerful tools to simplify complex physics concepts and make learning easier.
This edurev document provides creative and concise mnemonics to help students quickly grasp and recall key topics. Use them to make your study sessions more efficient and effective! Happy Learning!
1. Physical World
Mnemonic: "Good Workers work for Extended Session"
Explanation:
- Good: Gravitation
- Workers: Weak Nuclear Force
- Extended: Electromagnetism
- Session: Strong Nuclear Force
Strength wise arrangement of fundamental forces in ascending order:
Gravitation < Weak Nuclear Force < Electromagnetism < Strong Nuclear Force
The order should be learn as can be asked in conceptual based questions.
2. Seven Fundamental Quantities
Mnemonic: "Let My Time Always Keep Me Calm"
Explanation:
- Let: Length - Metre (m)
- My: Mass - Kilogram (kg)
- Time: Time - Second (s)
- Always: Electric Current - Ampere (A)
- Keep: Thermodynamic Temperature - Kelvin (K)
- Me: Amount of Substance - Mole (mol)
- Calm: Luminous Intensity - Candela (cd)
Helpful in solving dimensional analysis questions.
3. Systems of Units
Mnemonic: "Can Frogs Make Sandwiches?"
Explanation:
- C - CGS System (Centimeter, Gram, Second)
- F - FPS System (Foot, Pound, Second)
- M - MKS System (Meter, Kilogram, Second)
- S - SI System (International Standard System)
4. Applications of Dimensional Analysis
Mnemonic: "Daring Cats Climb Down"
Explanation:
- Daring - Derive relationships
- Cats- Check correctness of equations
- Climb - Convert units
- Down - Deduce formulas
A method for solving all the numericals of dimensional analysis.
5. Two Supplementary Units
Mnemonic: "Ravi Smiles"
Explanation:
- Ravi - Radian (Plane Angle)
- Smiles - Steradian (Solid Angle)
6. Scientific Notation
Mnemonic: "Power Saves Time!"
Explanation:
- Use powers of 10 to represent very large or small numbers concisely.
MASTER THESE SHORTCUTS, AND LET SUCCESS FOLLOW!
The document Mnemonics: Units & Measurements | Physics Class 11 - NEET is a part of the NEET Course Physics Class 11.
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FAQs on Mnemonics: Units & Measurements - Physics Class 11 - NEET
| 1. What are the seven fundamental quantities in physics? |  |
Ans. The seven fundamental quantities in physics are length (meter), mass (kilogram), time (second), electric current (ampere), thermodynamic temperature (kelvin), amount of substance (mole), and luminous intensity (candela). These quantities serve as the foundation for measuring physical phenomena.
| 2. What are the different systems of units used in measurements? | |
Ans. The two primary systems of units are the International System of Units (SI) and the Imperial system. The SI system is widely used in scientific contexts and includes units like meters, kilograms, and seconds. The Imperial system, used primarily in the United States, includes units such as feet, pounds, and gallons.
| 3. How is dimensional analysis applied in physics? | |
Ans. Dimensional analysis is a technique used to check the consistency of equations and to derive relationships between physical quantities. By comparing the dimensions of different quantities, one can determine whether an equation is dimensionally correct, and it can also assist in converting units from one system to another.
| 4. What are the two supplementary units in the SI system? | |
Ans. The two supplementary units in the SI system are the radian (for measuring angles) and the steradian (for measuring solid angles). These units are not classified as fundamental quantities but are essential for various calculations involving geometry and spatial dimensions.
| 5. How do you express numbers in scientific notation? | |
Ans. To express a number in scientific notation, you write it as the product of a number between 1 and 10 and a power of ten. For example, the number 4500 can be expressed as 4.5 × 10^3. This format is useful for simplifying calculations and expressing very large or very small numbers clearly.
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Document Description: Mnemonics: Units & Measurements for NEET 2025 is part of Physics Class 11 preparation.
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