SAMPAD Grade 10 Entrance Exam flashcards
SAMPAD Grade 10 Entrance Exam · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Quadratic formula
- The solution to ax² + bx + c = 0 is x = [-b ± √(b² - 4ac)] / (2a), where a ≠ 0. The discriminant b² - 4ac determines the nature of the roots.
- Arithmetic progression sum
- For an arithmetic progression with first term a and common difference d, the sum of the first n terms is Sₙ = n/2 [2a + (n-1)d].
- Pythagorean theorem
- In a right-angled triangle, the square of the hypotenuse equals the sum of the squares of the other two sides: a² + b² = c².
- Simple interest formula
- Simple interest is calculated as I = (P × R × T) / 100, where P is principal, R is annual rate percent, and T is time in years.
- Probability of an event
- The probability of an event is the number of favourable outcomes divided by the total number of equally likely outcomes. It ranges from 0 to 1.
- Newton's second law
- The force acting on an object equals its mass times its acceleration: F = ma. The SI unit of force is the newton (N).
- Ohm's law
- The current through a conductor is directly proportional to the voltage across it and inversely proportional to its resistance: V = IR.
- Photosynthesis equation
- Green plants use sunlight and chlorophyll to convert carbon dioxide and water into glucose and oxygen: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.
- pH scale
- The pH scale measures acidity or basicity from 0 to 14. pH below 7 is acidic, pH 7 is neutral, and pH above 7 is basic. pH = -log[H⁺].
- Isotopes
- Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons, giving different mass numbers.
- Mitochondria function
- Mitochondria are cell organelles that produce energy in the form of ATP through cellular respiration. They are called the powerhouse of the cell.
- Subject-verb agreement
- A singular subject takes a singular verb, and a plural subject takes a plural verb. Prepositional phrases between the subject and verb do not change the verb form.
- Active to passive voice
- To change active to passive, make the object the subject, use be + past participle of the main verb, and add the original subject after 'by' if needed.
- Direct to indirect speech
- When reporting speech, change first-person pronouns to match the subject, second-person to match the object, and shift the tense back one step if the reporting verb is past.
- Articles a, an, the
- Use 'a' before consonant sounds, 'an' before vowel sounds, and 'the' for specific or unique nouns. Articles are determiners that modify nouns.
- Prepositions since and for
- Use 'since' with a specific point in time (since 2010) and 'for' with a duration (for three years). Both are used with perfect tenses.
- Semicolon usage
- A semicolon joins two independent clauses without a conjunction. It can also separate items in a list that already contain commas.
- Bangladesh Independence Day
- Bangladesh celebrates Independence Day on 26 March, marking the declaration of independence in 1971. Victory Day is celebrated on 16 December.
- Sundarbans
- The Sundarbans is the world's largest mangrove forest, located in the delta of the Ganges, Brahmaputra, and Meghna rivers in Bangladesh and India. It is a UNESCO World Heritage Site.
- United Nations founding
- The United Nations was founded in 1945 after World War II. Its headquarters is in New York City, and its current Secretary-General is António Guterres.
- SAARC headquarters
- The South Asian Association for Regional Cooperation (SAARC) has its headquarters in Kathmandu, Nepal. It was founded in 1985.
- Padma Bridge
- The Padma Bridge is Bangladesh's longest bridge, opened in 2022. It connects Munshiganj and Shariatpur districts across the Padma River.
- Blood relation tree
- In blood relation problems, draw a family tree: use vertical lines for generations, horizontal lines for siblings and spouses, and mark males and females distinctly.
- Syllogism with Venn diagrams
- For syllogisms, draw Venn diagrams: 'All A are B' means A is inside B; 'Some A are B' means overlap; 'No A is B' means disjoint sets.
- Direction sense
- In direction problems, track facing direction after each turn. Use the Pythagorean theorem to find the shortest distance between start and end points.
- Coding-decoding letter positions
- In coding-decoding, map letters to numbers using A=1, B=2, …, Z=26. Look for constant shifts, reversals, or alternating patterns in the code.
- Odd one out
- In odd-one-out questions, identify the category, property, or pattern shared by most items and select the item that does not fit that rule.
- বাংলা বর্ণমালা
- বাংলা বর্ণমালায় স্বরবর্ণ ১১টি এবং ব্যঞ্জনবর্ণ ৩৯টি, মোট ৫০টি বর্ণ রয়েছে। এগুলো বাংলা ভাষার লিখন পদ্ধতির মৌলিক একক।
- সন্ধি
- সন্ধি হলো দুই বর্ণের মিলন। বাংলা সন্ধি প্রধানত তিন প্রকার: স্বরসন্ধি, ব্যঞ্জনসন্ধি ও বিসর্গসন্ধি।
- সমাসের প্রকারভেদ
- বাংলা সমাস প্রধানত ছয় প্রকার: দ্বন্দ্ব, কর্মধারয়, তৎপুরুষ, বহুব্রীহি, দ্বিগু ও অব্যয়ীভাব। সমাস হলো একাধিক পদের একপদে সংক্ষেপণ।
- চর্যাপদ
- চর্যাপদ বাংলা সাহিত্যের আদি নিদর্শন, রচয়িতা সিদ্ধাচার্যগণ। এটি ১৯০৭ সালে হরপ্রসাদ শাস্ত্রী কর্তৃক নেপাল থেকে আবিষ্কৃত হয়।
- মেঘনাদবধ কাব্য
- মাইকেল মধুসূদন দত্ত রচিত 'মেঘনাদবধ কাব্য' বাংলা সাহিত্যের প্রথম সার্থক মহাকাব্য। এটি রামায়ণের একটি অংশ অবলম্বনে রচিত।