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AP 10th Class Question Paper 2025-26 FA1 Physical Science

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Page 1

FOR AP 10TH CLASS FA1 EXAM PREPARATION

AP 10th Class 2025-26
Question Paper · FA1
Physical Science
EXAM YEAR TYPE SUBJECT

AP 10th Class FA1 2025-26 Question Paper Physical Science

Notes · Sample Papers · Previous Year Papers · Mock Tests

Page 2

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AP FA1 2025-26 Question Paper & Answer Key
Class 10 · Subject: Physical Science (General Science Paper I) (English /  !)
GENERAL SCIENCE - Paper - I · PHYSICAL SCIENCE · క రయన 

Name of the Student:
Roll No: ________________
___________________________

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No. of Questions : 15 Max. Marks : 35

Time : 1 hr. 15 min
. c om Class : X Subject : Physical Science

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e 1. Answer ALL the questions. 2. Each question carries 1 mark.gl (7 x
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SECTION - I : Note: a
a g 1 = 7)
 ! - I : గమ%క : 1. అ ల. /012 4. 2.  .1/ .

1. Oil and fat containing food items are flushed with nitrogen. Why?
"# మ%& ' క+,న ఆ/ర ప2 ల 8 ; < జ@ CDE. HI?
Nitrogen prevents food items from turning rancid.

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2. Complete the following equation.
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Acid + Base ——> Salt + ________
ఆ + ——> లవ + ________
Acid + Base ——> Salt + Water

3.
Substance 8 A B C D
\]
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Formula CaOCl₂ Na₂CO₃ CaSO₄·2H₂O CaSO₄·½H₂O

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Which of the above substances is used by doctors to support fractured bones in the correct position?
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D) CaSO₄·½H₂O (Plaster of Paris)

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4. The magnification produced by a plane mirror is +1. What does this mean?
సమతల ద ఆవ +1. r అ ఏt ?
The image formed is virtual and erect.

5. What happens when dilute hydrochloric acid is added to iron filings?
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For more Question Papers, Sample Papers, Notes & Syllabus visit Page 1 of 6

Page 3

ఇQప రజQI సజల v %y ఆ Q క+zన { ఏt జE!Q?
A chemical reaction occurs; FeCl₂ is formed along with H ₂ gas.

6. Which one of the following materials CAN NOT be used to make a lens?
M | ; క క త}_ పlగపడ ప2 ఏM?
A) Water €E
B) Glass ‚
C) Plastic y
D) Clay కమ
D) Clay

7. What is the speed of light in vacuum?
; ]† త?
3 x 10⁸ m/s
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For more Question Papers, Sample Papers, Notes & Syllabus visit Page 2 of 6

Page 4

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SECTION - II : Note: 1. Answer ALL the questions. 2. Each question carries 2 marks. (4
x 2 = 8)
 ! - II : గమ%క : 1. అ ల. /012 4. 2.  .2/ 2.

8. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens.
ఒక f { +1.5 D క క మ గల నవర క ‹ E. క క Ž త కQ ‘.
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P = 1/f ⇒ 1.5 = 1/f ⇒ f = 1/1.5 ⇒ f ≈ 0.67 m
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e small amount of baking soda to fresh milk. Why does this milk take a long
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9. A milkman adds asvery
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ఒక ల a%
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time to set as curd?
' “DH; ]” •eQ D– లI క CDE. ఈ ˜E! ™E I HI
వ ›C ప{ M?
The alkaline milk takes a longer time to set into curd because the lactic acid being formed has to
neutralise the alkali present in it.

10. Explain the following in terms of gain or loss of oxygen.
ఆ జ@ వ ž2 చ ప  ద| `వ ‘.
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(a) Oxidation
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(b) Reduction
యకర
(a) Oxidation → Process of gaining Oxygen.
(b) Reduction → Process of losing Oxygen (or) gaining Hydrogen.

11. Write any two important uses of washing soda.
ల •e ¢ ఏfŽ { T ¥న పlలQ ‘.
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1) Used in laundry.
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2) Domestic purposes.

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3) Paper and glass industries.
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For more Question Papers, Sample Papers, Notes & Syllabus visit Page 3 of 6

Page 5

SECTION - III : Note: 1. Answer ALL the questions. 2. Each question carries 4 marks.
(3 x 4 = 12)
 ! - III : గమ%క : 1. అ ల. /012 4. 2.  .4/ 2.

12. Draw any one of the following diagrams.
ఈ M | ; ఏ¦Ž ఒక ప § ‘.
A) Draw the ray diagrams of an image formed when the object is placed in front of a bi-convex lens in
the following positions.
ఒక ¨ ర క కTనI H ఈ M Žల; ఒక వ Q చ వలన ఏ ª ] ¬లQ ­®
ర లQ § ‘.
a) Between F₁ and 2F₁ b) Between F and Optic centre O
F₁ మ%& 2F₁ల మ F మ%& y Oలమ
B) Draw the diagram which shows that an acid solution in water conducts electricity.
€ ; ఆ వ ` హకతQ క గµ ద ­® చ ప TQ § ‘.
A) Ray diagram for object between F₁ and 2F₁ in front of a bi-convex lens:

13. Write the applications of pH in daily life.
జ ¶` ; pH ¢ అQవ ŽలQ ‘.
pH is used to measure whether a substance is acidic or basic in nature.
1) Ensures proper digestion.
2) Maintains healthy soil for agriculture.
3) Plays a vital role in water treatment, food safety and even in tooth decay prevention.

14.
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For more Question Papers, Sample Papers, Notes & Syllabus visit Page 4 of 6

Page 6

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Material medium
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Air <= Ice > Ruby ?@ Benzene B!
;నక 8
Refractive index
1.0003 1.31 1.71 1.50
వ వన !

Observe the table and answer the following questions.
ప కQ ప%¸ , M లI జ|º ‘.
i) Which material medium is optically rarer?
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ii) Which material medium o ism . co
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iii) Write the relation between refractive index and speed of light in the medium?
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iv) What isathe S.I. unit of Refractive Index?
] వ‘ మ ‘.

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i), ii), iii) [not captured]
iv) No units (Refractive index has no units).

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For more Question Papers, Sample Papers, Notes & Syllabus visit
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Page 5 of 6

Page 7

SECTION - IV : Note: 1. Answer the question. It carries 8 marks. 2. There is an internal
choice. (1 x 8 = 8)
 ! - IV : గమ%క : 1. ఈ G . /0 H 4. .8/ 2. 2. త త Mక
కలN.

15. A) Balance the following chemical equations.
M ర యన సOకర¼లQ µ ‘.
i) HNO₃ + Ca(OH)₂ → Ca(NO₃)₂ + H₂O
ii) NaOH + H₂SO₄ → Na₂SO₄ + H₂O
iii) NaCl + AgNO₃ → AgCl + NaNO₃
iv) BaCl₂ + H₂SO₄ → BaSO₄ + HCl
(Or) (O8)
B) Explain an activity to understand the phenomenon of refraction of light through a rectangular glass
slab.
r చ ర ర ‚M e ] వ వన ష} అ µ వe ఒక TQ `వ ‘.
A) Balanced equations:
i) 2HNO₃(aq) + Ca(OH)₂(aq) → Ca(NO₃)₂(aq) + 2H₂O(l)
ii) 2NaOH(aq) + H₂SO₄(aq) → Na₂SO₄(aq) + H₂O(l)
iii) NaCl(aq) + AgNO₃(aq) → AgCl(s) + NaNO₃(aq) (already balanced)
iv) BaCl₂(aq) + H₂SO₄(aq) → BaSO₄(s) + 2HCl(aq)
OR
B) Activity: Refraction of light through a rectangular glass slab.
Aim: To study the refraction of a ray of light through a glass slab and to measure its lateral
displacement.
Apparatus required: A white sheet of paper, drawing board, drawing pins, alpins, a sharp pencil, a
scale.
Procedure: 1) Fix a sheet of white paper on a drawing board using drawing pins. 2) Place a
rectangular glass slab over the sheet in the middle.
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For more Question Papers, Sample Papers, Notes & Syllabus visit Page 6 of 6

Document Details

Board / OrgAndhra Pradesh Board
ExamClass 6
TypeQuestion Paper
Pages7
Languageenglish
Updated24 Sep 2026

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