General Science Quiz with Answers

Physics Basics: Units and Measurement

Units are the easiest marks in Physics. Exams love to ask the SI unit of a quantity. Force is measured in newton (N), pressure in pascal (Pa), energy and work in joule (J), and power in watt (W). The basic SI units you must know are metre (m) for length, kilogram (kg) for mass, second (s) for time and kelvin (K) for temperature.

Learn these as simple pairs so you do not mix them up. A common trap is to swap the unit of power and energy, or to forget that pressure is force divided by area. Keep a small list of quantity and its unit, revise it daily, and most unit questions become quick wins.

Physics: Motion, Light and Electricity

Motion questions test speed, velocity and acceleration. Speed is distance over time. Newton's three laws of motion are a favourite area, so know each one in simple words and one daily life example.

Light gives easy questions on reflection, refraction and the working of a mirror or lens. Remember that light travels in a straight line and its speed in vacuum is about 3 lakh kilometres per second (3 x 10 to the power 8 metres per second).

In electricity, the basics matter most. Current is measured in ampere (A), voltage in volt (V) and resistance in ohm. Ohm's law links them. Also know that a fuse protects a circuit and that copper is a good conductor while rubber is an insulator.

Chemistry: Elements, Atoms and the Periodic Table

This section asks about the building blocks of matter. An atom has protons and neutrons in the centre (the nucleus) and electrons moving around it. The number of protons is the atomic number, which fixes the element.

Know common symbols and a few firsts. Hydrogen is the lightest element and the first in the periodic table. Oxygen supports burning and is needed for breathing. Carbon is the base of all living things. Metals like iron, copper and aluminium versus non metals like sulphur and oxygen is another simple compare and contrast that exams use.

Chemistry: Acids, Bases and Everyday Chemistry

Acids taste sour and bases taste bitter and feel soapy. Litmus paper is the simple test. Acid turns blue litmus red, and base turns red litmus blue. The pH scale runs from 0 to 14, where 7 is neutral, below 7 is acidic and above 7 is basic.

Everyday acids are very common in exams. Lemon and orange have citric acid, vinegar has acetic acid, curd has lactic acid, and our stomach uses hydrochloric acid to digest food.

Common compounds and their formulas are also asked. Table salt is sodium chloride (NaCl), baking soda is sodium bicarbonate (NaHCO3), washing soda is sodium carbonate (Na2CO3), and quicklime is calcium oxide (CaO). Learn the everyday name and the formula together.

Biology: Human Body, Cells and Nutrition

The human body section is the most asked area in many exams. An adult human body has about 206 bones. The skin is the largest organ, and the stapes in the ear is the smallest bone. Blood is slightly basic with a pH around 7.4, and red blood cells carry oxygen using a protein called haemoglobin.

The cell is the basic unit of life. The nucleus controls the cell and mitochondria are called the powerhouse of the cell because they release energy.

Nutrition questions focus on vitamins and balanced diet. Each vitamin has a deficiency disease, so it is easy to test. Carbohydrates give energy, proteins build the body, and fats store energy. A simple table of nutrient, source and use is enough for most questions.

Science and Technology in Current Affairs

A few General Science questions come from recent science news, mostly about India's space and research work. ISRO is a big source. Chandrayaan 3 made India land near the south pole region of the Moon, and Aditya L1 is India's first solar mission, placed near a point called L1 about 1.5 million kilometres from Earth to study the Sun.

Also keep an eye on health and tech topics in the news, like vaccines, new satellites and missions. For these, you do not need depth. Just know the name of the mission or discovery, what it is for, and the agency or country behind it. Revising one line per recent item is enough to handle these questions.

Why it matters in the exam

General Science appears in the General Awareness or General Studies section of almost every major exam, including SSC (CGL, CHSL, MTS, GD), RRB (NTPC, Group D, ALP), bank exams and many state level exams (PSC and police). In SSC CGL Tier 1 alone, roughly 7 to 10 questions usually come from Physics, Chemistry and Biology together, with Biology often having the highest share. The level is basic (Class 6 to 10 NCERT) and the questions are short and fact based, so with steady revision this becomes one of the most scoring and time saving parts of the paper.