Physics Class 9th MCQs MCQs - General Science Practice | PakExamPoint
Practise Physics Class 9th MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Physics Class 9th MCQs MCQs and revision practice
Study Physics Class 9th MCQs through multiple-choice questions in General Science. This subtopic contains 91 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Physics Class 9th 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.
ایک ریسنگ کار کی استحکام میں _______ سے اضافہ ہوتا ہے؟
A. Decreasing its width
B. Lowering its centre of gravity
C. Raising its centre of gravity
D. Increasing its height
Check answer and explanation
Answer: Lowering its centre of gravity
Explanation The stability of a racing car is increased by lowering its center of gravity , which reduces the risk of rollover or loss of control. This can be achieved through design elements like a lower ride height, a wider stance, or a lower seating position for the driver.
ایک شے جس میں ذرات ایک دوسرے کے قریب ہوتے ہیں اور ہلتے ہیں وہ _______ کو بیان کرتا ہے؟
A. Solid
B. All three
C. Liquid
D. Gas
Check answer and explanation
Answer: Solid
Explanation In a solid, the particles (atoms, molecules, or ions) are closely packed and vibrate in place, holding their position in the crystal lattice. This vibration is due to thermal energy, and the particles oscillate around their fixed positions. Key Points: In a gas , particles are widely spaced and move freely. In a liquid , particles are close together but move past each other.
Explanation The Moon is Earth’s only natural satellite . Diameter – 3,474 km Distance from Earth – 384,400 km Orbital period – 27.3 days Surface gravity – 1/6th of Earth First human landing – Apollo 11, 1969 Last verified on 18-03-2026
اگر سیل بند سلنڈر میں گیس کو گرم کیا جائے تو _______ بڑھ جاتا ہے۔
A. Average kinetic energy of the particles
B. Pressure inside the container
C. Temperature of the gas
D. All of them
Check answer and explanation
Answer: All of them
Explanation When a gas is heated in a sealed cylinder: The temperature of the gas increases (by definition of heating). The average kinetic energy of the particles increases (as the temperature rises, the molecules move faster). The pressure inside the container increases (as the molecules move faster and collide more frequently with the container walls ).
Explanation The potential energy (PE) of an object is calculated as: PE = mass x gravity x height = 1 kg x 10 m/s^2 x 1 m = 10 Joule So, the energy possessed by the body is 10 Joule.
Explanation The numerical value of G (the gravitational constant) remains constant everywhere in the universe, regardless of the location, time, or conditions. G is a fundamental constant of nature that describes the strength of gravitational attraction between objects.
رگڑ ______ کی وجہ سے رابطے میں دو جسموں کے درمیان حرکت کی مخالفت کرتا ہے؟
A. Roughness of surfaces
B. Weight of bodies
C. Charges on bodies
D. None of above
Check answer and explanation
Answer: Roughness of surfaces
Explanation Friction is a force that opposes motion between two bodies in contact, and it arises due to the interaction between the surfaces in contact. The roughness of the surfaces, including microscopic imperfections and irregularities , leads to interlocking and resistance to motion. This resistance is what we experience as friction.
Explanation The vertical component of the force is: Vertical component = Force × sin(angle) = 15 N × sin(60°) = 15 N × 0.866 = 13 N So, the vertical component of the 15 N force at an angle of 60° is approximately 13 N.
Explanation The critical velocity (vc) is the minimum velocity an object must have to orbit the Earth without falling to the ground. It is given by the formula: vc = √(gR) where: g is the acceleration due to gravity (approximately 9.8 m/s²) R is the radius of the Earth (approximately 6,371 kilometers)
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).
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