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SSC JE Physics Questions
Practise physics (science) for the SSC Junior Engineer Examination: 10 multiple-choice questions, each with the correct answer and a worked explanation. Click an option to check it, or “New questions” for another set.
Physics practice
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Q1.Sound cannot travel through:
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Answer: B — Vacuum
Sound needs a medium; it cannot travel through a vacuum.
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Q2.What force is needed to accelerate a 8 kg mass at 1 m/s²?
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Answer: C — 8 N
F = ma = 8 × 1 = 8 N.
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Q3.The device that converts mechanical energy into electrical energy is a:
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Answer: B — Generator
A generator uses electromagnetic induction.
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Q4.Find the kinetic energy of a 20 kg body moving at 10 m/s.
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Answer: C — 1,000 J
KE = ½mv² = ½ × 20 × 10² = 1,000 J.
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Q5.The SI unit of power is the:
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Answer: B — Watt
1 watt = 1 joule per second.
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Q6.A current of 1.5 A flows through a 20 Ω resistor. What is the potential difference across it?
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Answer: C — 30 V
Ohm’s law: V = IR = 1.5 × 20 = 30 V.
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Q7.An object at rest stays at rest unless acted on by a net force. This is:
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Answer: D — Newton’s first law (inertia)
Newton’s first law, the law of inertia.
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Q8.A body starts at 19 m/s and accelerates uniformly at 1 m/s² for 6 s. Find its final velocity.
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Answer: C — 25 m/s
v = u + at = 19 + 1×6 = 25 m/s.
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Q9.A transformer works on the principle of:
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Answer: C — Mutual induction
A changing current in one coil induces a voltage in the other.
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Q10.A current of 4 A flows through a 12 Ω resistor. What is the potential difference across it?
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Answer: D — 48 V
Ohm’s law: V = IR = 4 × 12 = 48 V.
How to approach physics questions
Write the formula before substituting and keep SI units throughout. Most numerical questions use one of: v = u + at, s = ut + ½at², F = ma, KE = ½mv², V = IR, P = I²R.
About SSC JE
SSC Junior Engineer Examination — conducted by Staff Selection Commission (SSC). Recruits civil, mechanical and electrical Junior Engineers; the general sections cover reasoning and awareness.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
SSC JE practice topics
| Topic | Section | Question source |
|---|---|---|
| Physics | Science | Calculated + question bank |
| Number System & Simplification | Quantitative aptitude | Calculated (new numbers every set) |
| Logical Reasoning | Reasoning | Calculated (new numbers every set) |
| Indian Polity, History & Geography | General awareness | Question bank |