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.
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
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.
Explanation The quantity of matter in a body is called its mass . while Force is a push or pull acted on an object . Weight is the measure of the force exerted on the mass of the body due to gravity.
Explanation A body is in equilibrium when the net force acting on it is zero, and it is not changing its motion. This means that the body is either at rest or moving with a constant velocity (uniform speed), but not accelerating.
ایک جسم معمولی جھکاؤ کے بعد غیر مستحکم توازن میں ہے اگر اس کا مرکز ثقل ______ ہے؟
A. Passes over the point of contact
B. Remains on one side of the point of contact
C. Remains above the point of contact
D. Is positioned at its bottom
Check answer and explanation
Answer: Remains above the point of contact
Explanation When a body is in unstable equilibrium , a slight tilt will cause its center of gravity (CG) to remain above the point of contact , making it prone to toppling over or falling. This means that the CG is not directly over the point of support, but is still above it , creating a moment that tends to rotate the body further. Key Points : A body is in stable equilibrium after slight tilt if its center of gravity remains above the point of contact. A body is in neutral equilibrium when its center of gravity remains at same height.
ایک جسم غیر جانبدار توازن میں ہوتا ہے جب اس کی کشش ثقل کا مرکز _______ ہے؟
A. Remains at same height
B. Is at its base
C. Is at highest position
D. Is at the lowest position
Check answer and explanation
Answer: Remains at same height
Explanation Neutral equilibrium is a state where the body is balanced , but the slightest disturbance will not cause it to return to its original position or topple over. In this state, the center of gravity (CG) remains at the same height , regardless of the slight tilt or displacement. Key Points : A body is in unstable equilibrium after slight tilt if its center of gravity remains above the point of contact. A body is in stable equilibrium after slight tilt if its center of gravity remains above the point of contact.
Explanation The renewable energy sources are : Water energy Wind energy Tidal energy Solar energy Hydroelectric Ocean energy Geothermal energy Biomass Biogas The non-renewable energy sources are : Fossil fuels or Hydrocarbon fuel (Oil, Natural gas, Coal) Nuclear energy Last verified on 16-03-2026
کسی مائع کو اس کا درجہ حرارت تبدیل کیے بغیر گیس میں تبدیل کرنے کے لیے حرارتی توانائی کی منتقلی کو _____ کہتے ہیں؟
A. Latent heat of melting
B. Latent heat of freezing
C. Latent heat of vaporization
D. Latent heat of boiling
Check answer and explanation
Answer: Latent heat of vaporization
Explanation Latent heat of vaporization is the energy required to change a liquid into a gas (or vice versa) without changing its temperature. Latent heat of fusion is the energy required to change a solid into a liquid (or vice versa) without changing its temperature.
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