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AP SSC Physical Science 1 Mark Questions 2026 – Most Expected Answers

AP SSC Physical Science 1 Mark Questions 2026 - Most Expected Answers

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AP SSC Physical Science 1 Mark Questions 2026 — This curated list contains the most expected one-mark questions and concise answers for quick revision. Extracted and edited from five model papers used in the 100 Days Action Plan, these short questions are ideal for last-minute practice before the SSC March exam.

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Each question here is formatted to help students memorize facts quickly and improve answer accuracy. Use this list as a rapid checklist for revision, and download the printable PDF from the Google Drive link below for offline practice.

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  • AP SSC Physical Science – 1 Mark Questions PDF

How to use these AP SSC Physical Science 1 Mark Questions 2026

Focus on understanding the core idea behind each one-mark question rather than rote memorization. Read a block of 10 questions, try to answer them aloud, then check your answers. Repeat daily — AP SSC Physical Science 1 Mark Questions. Short, frequent practice is most effective for one-mark style questions.

Pro tip: mark items you get wrong and revise them twice the next day.

One-mark Questions & Answers (Most Expected)

QUESTION:01

Q1.1) Why do we apply paint to iron articles?
Ans: Avoids corrosion.
Q1.2) Predict — Exhalation air is hotter than inhalation air in the respiration process.
Ans: Heat exchange.
Q1.3) Why do we keep food in airtight containers?
Ans: To prevent oxidation.
Q1.4) A magnesium ribbon is burnt in the presence of oxygen to give magnesium oxide. Write a chemical equation.
Ans: 2Mg + O2 → 2MgO.
Q1.5) Suggest one method to prevent corrosion.
Ans: Painting.

QUESTION:02

Q2.1) Food cans are coated with tin and not with zinc because:
A) Zinc is costlier. B) Zinc has a higher melting point. C) Zinc is more reactive. D) Zinc is less reactive.
Ans: C
Q2.2) What is the common name of CaOCl2?
Ans: Bleaching powder.
Q2.3) Which pair will give displacement reactions? (Options).
Ans: AgNO3 solution and copper metal (D).
Q2.4) Give an example of an acid.
Ans: HCl.
Q2.5) Which one is a non-metal? A) Magnesium B) Gold C) Sulphur D) Silver.
Ans: C

QUESTION:03

Q3.1) What reaction is used in the hydrogenation of vegetable oils?
Ans: Addition.
Q3.2) What happens to phenolphthalein in a basic solution?
Ans: Pink.
Q3.3) What is a series of compounds with the same functional group called?
Ans: Homologous series.
Q3.4) pH value = 10. What is the colour with methyl orange?
Ans: Yellow.
Q3.5) Write the formula of the first member of the homologous series to which C5H10 belongs.
Ans: C2H4.

QUESTION:04

Q4.1) Focal length of a convex mirror with a radius of curvature of 32 cm?
Ans: f = R/2 = 16 cm.
Q4.2) Why can oxides of highly reactive metals not be reduced by carbon?
Ans: Oxygen affinity.
Q4.3) Focal length of lens of power −2.0 D?
Ans: f = 1/P = −0.5 m.
Q4.4) Method to extract a highly reactive metal from its ore?
Ans: Electrolysis.
Q4.5) Power of a convex lens having a focal length of 50 cm?
Ans: P = 1/f = 0.02 D.

QUESTION:05

Q5.1) Change in curvature of eye lens changes its ___.
Ans: Focal length.
Q5.2) Which hydrocarbon undergoes a substitution reaction? (Options)
Ans: C4H10.
Q5.3) Ability of eye lens to adjust focal length is called ___.
Ans: Accommodation.
Q5.4) Which hydrocarbon undergoes an addition reaction?
Ans: C3H6 (option D).
Q5.5) Least distance of distinct vision for a young adult normally is about ___.
Ans: 25 cm.

QUESTION:06

Q6.1) Draw the symbol of a battery or a combination of cells.
Ans: (Symbol in paper/diagram).
Q6.2) Power of a concave lens of focal length 2 m?
Ans: P = 1/f = −0.5 D.
Q6.3) Draw the symbol of a rheostat.
Ans: (Symbol).
Q6.4) Change in focal length of eye lens is caused by the ___.
Ans: Ciliary muscles.
Q6.5) Draw the symbol of an ammeter.
Ans: (Symbol).

QUESTION:07

Q7.1) Which material is the best conductor of electricity?
Ans: Silver.
Q7.2) Splitting of white light into component colours is called ___.
Ans: Dispersion.
Q7.3) How is an ammeter connected in a circuit?
Ans: Series.
Q7.4) Radius of curvature 20 cm — focal length?
Ans: 10 cm.
Q7.5) Device used to protect appliances from overloading?
Ans: Fuse.

QUESTION:08

Q8.1) How to connect 2 Ω, 3 Ω, 6 Ω to get 11 Ω?
Ans: Series.
Q8.2) Lowest total resistance possible with coils 4Ω,8Ω,12Ω,24Ω?
Ans: 2 Ω (parallel combination).
Q8.3) Two resistors, 3Ω and 6Ω in parallel — resultant?
Ans: 2 Ω.
Q8.4) 2Ω and 4Ω in series — resultant?
Ans: 6 Ω.
Q8.5) With 6Ω and 12Ω, how to get 4Ω?
Ans: Connect in parallel.

Physical Science Revision Strategy (two short paragraphs)

Begin each study session by attempting 20 one-mark questions in timed mode (10–15 minutes). This improves recall under exam conditions. Mark any missed items and re-run the same set tomorrow to check retention.

Pair quick theory notes with each question: a one-line explanation attached to the answer helps convert rote facts into short conceptual memory. For example, “Painting prevents corrosion — it blocks oxygen and moisture contact.”

Further resources & official references

For official announcements and exam schedules, visit your state education board’s official website and the official SSC exam portal. Use the printable Google Drive file above for classroom handouts and student practice sheets.

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