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.
Explanation Newton's first law of motion is also called as Law of inertia . Inertia is the ability of a body by virtue of which it opposes a change. According to Newton’s first law of motion, an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. The inertia of rest : When a body is in rest, it will remain at rest until we apply an external force to move it. This property is called inertia of rest. The inertia of motion: When a body is in a uniform motion, it will remain in motion until we apply an external force to stop it. This property is called inertia of motion.
مندرجہ ذیل میں سے کون سا سب سے زیادہ گھسنے والا ہے؟
A. Electron
B. Proton
C. Alpha particle
D. Neutron
Check answer and explanation
Answer: Neutron
Explanation Neutrons are the most penetrating, because they have no charge and a relatively large mass compared to electrons and protons. This allows them to travel long distances through matter without being deflected or absorbed, making them highly penetrating.
Explanation An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal, in a solid state. The components of an alloy are typically mixed when they are molten, and then solidified to form a uniform solid solution.
دو پوائنٹس کے درمیان سب سے کم فاصلہ _____ کہلاتا ہے؟
A. Speed
B. Velocity
C. Distance
D. Displacement
Check answer and explanation
Answer: Displacement
Explanation The shortest distance between two points is called displacement. Displacement is a measure of the straight-line distance between two points . It is a vector quantity. Key Point : The longest distance between two points is called the circumference (if the points are on a circle) or a diagonal (if the points are on a polygon or a rectangle).
نیوٹن کے عالمی کشش ثقل کے قانون کے مطابق ∝ _______؟
A. Both (a) and (b)
B. 1/r2
C. r2
D. m1 m2
Check answer and explanation
Answer: Both (a) and (b)
Explanation According to Newton's law of universal gravitation , the force of gravity (F) is proportional to: The product of the two masses (m1 and m2): F ∝ m1 m2 The inverse square of the distance (r) between the centers of the two objects: F ∝ 1/r^2
فتوسنتھیسس کے دوران پیدا ہونے والا بنیادی مالیکیول ______ ہے؟
A. Nucleotide
B. Glucose
C. Amino acid
D. Fatty acid
Check answer and explanation
Answer: Glucose
Explanation The fundamental molecule produced during p hotosynthesis is glucose Key Product: Glucose (sugar/carbohydrate) is the main energy-storing molecule. Purpose: It is used for plant respiration and as a building block for cellulose. By-product: Oxygen is also produced and released into the atmosphere
Explanation The correct sequence of biological organization is: Atom → Molecule → Cell → Tissue → Organ This sequence represents the hierarchy of biological organization , from the smallest units (atoms) to the largest (organs): Atoms ( the building blocks of matter ) Molecules (groups of atoms bonded together) Cells ( the basic structural and functional units of life ) Tissues (groups of similar cells performing a specific function) Organs ( structures composed of two or more types of tissues working together )
الیکٹران میں نظر آنے والی روشنی سے بہت کم طول موج ہے، اور یہ الیکٹران خوردبین کو _____ تصاویر بنانے کی اجازت دیتا ہے۔
A. Equal-resolution
B. Higher-resolution
C. Higher-magnification
D. Lower-resolution
Check answer and explanation
Answer: Higher-resolution
Explanation Electron microscopes produce higher-resolution images due to the shorter wavelength of electrons compared to visible light. This enables them to reveal smaller details and structures that are not visible with light microscopes.
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