General Science Class 9 MCQs MCQs - General Science Practice | PakExamPoint
Practise General Science Class 9 MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.
General Science Class 9 MCQs MCQs and revision practice
Study General Science Class 9 MCQs through multiple-choice questions in General Science. This subtopic contains 366 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these General Science Class 9 MCQs MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
پیمائش کا ایک عالمی نظام جس میں بنیادی مقداروں کی اکائیاں متعارف کرائی گئیں ____ کہلاتے ہیں؟
A. International system of units
B. None of above
C. Hexadecimal system
D. Prefixes
Check answer and explanation
Answer: International system of units
Explanation The International System of Units (SI) is a modern metric system that defines the units of measurement for base quantities. Such as length, mass, time, current, temperature , amount of substance, and luminous intensity. The SI system was established in 1960 and is widely used across the world as a standardized system of measurement.
جب دو ایک جیسے ایٹم الیکٹران کے جوڑے بانٹتے ہیں اور بانڈ کی شکل کے بجائے ایک دوسرے پر طاقت کا استعمال کرتے ہیں تو ______ ہے؟
A. Non-polar covalent bond
B. Double covalent bond
C. Coordinate covalent bond
D. Polar covalent bond
Check answer and explanation
Answer: Non-polar covalent bond
Explanation When two identical atoms share electron pairs and exert an equal force on each other, the bond formed is a non-polar covalent bond. This type of bond is characterized by a equal sharing of electrons, resulting in a balanced and symmetrical distribution of electrons.
فیوژن یا فیوژن ری ایکشن کے دوران خارج ہونے والی توانائی کو _____ کہتے ہیں؟
A. Nuclear energy
B. Geothermal energy
C. Solar energy
D. Tidal energy
Check answer and explanation
Answer: Nuclear energy
Explanation Nuclear energy is the energy released from the nucleus of an atom, either through fission (splitting of atoms) or fusion (combination of atoms). This energy is released in the form of heat and radiation , and is harnessed in nuclear power plants to generate electricity. Key Points: Solar energy is energy from the sun Geothermal energy is energy from the Earth's internal heat Tidal energy is energy from ocean tides
مائکروسکوپ کی ریزولوشن کو _____ پوائنٹس کے درمیان سب سے چھوٹا فاصلہ قرار دیا جاتا ہے۔
A. Three
B. Two
C. Four
D. One
Check answer and explanation
Answer: Two
Explanation The resolution of a microscope is defined as the smallest distance between two points that can still be distinguished as separate. The field of view of a microscope is defined as the largest distance between two points that can be observed simultaneously without moving the sample or the microscope.
بے رنگ، شکل میں بے ترتیب، نیوکلیٹیڈ اور خون کے سرخ خلیے سے بڑے خلیے کو کہتے ہیں؟
A. Platelets
B. Leucocytes
C. Lymphocytes
D. Erythrocytes
Check answer and explanation
Answer: Leucocytes
Explanation Leucocytes are also known as white blood cells. They are colorless, irregularly shaped , nucleated cells that are larger in size compared to red blood cells (RBCs). They play a vital role in the immune system , helping to fight infections and diseases.
آئی پیس اور _____ لینس کی طاقت کے مرکب کا استعمال کرکے ہلکی خوردبین کی میگنیفیکیشن بنائی جاتی ہے۔
A. Concave
B. Objective
C. Convex
D. Mirror
Check answer and explanation
Answer: Objective
Explanation The magnification of a light microscope is formed by a combination of the eyepiece and objective lens. The objective lens collects and magnifies light from the sample. It is then further magnified by the eyepiece, producing the final magnification.
جانداروں کے ذریعہ آزاد توانائی کو مختلف شکلوں میں تبدیل کرنا ____ کہلاتا ہے؟
A. Biochemistry
B. Biomechanics
C. Bioenergetics
D. Biophysics
Check answer and explanation
Answer: Bioenergetics
Explanation Bioenergetics is the process by which living organisms convert free energy into different forms. Such as light energy to chemical energy in photosynthesis, or chemical energy from nutrients to kinetic energy in cellular respiration. This conversion is essential for maintaining life and supporting various cellular activities.
Explanation The rate of a chemical reaction typically increases when the temperature increases . As higher temperatures provide more energy for the reactant molecules to collide and react.
مندرجہ ذیل میں سے کون سی مادے کی سب سے ہلکی شکل ہیں؟
A. Gases
B. Liquid
C. Plasma
D. Solid
Check answer and explanation
Answer: Plasma
Explanation Plasma is a state of matter where atoms or molecules are ionized, meaning they have lost or gained electrons , resulting in a collection of charged particles. Plasma is often referred to as the fourth state of matter. It is the lightest form of matter , as the particles are highly energetic and widely spaced.
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