10th Physics One Mark Test Question Paper

Lock in full marks in your objective section by evaluating your preparation with our 10th Physics One Marks Test Question Paper. One-mark questions—ranging from multiple-choice questions (MCQs) and unit conversions to basic formula applications—are the fastest way to boost your science total. This targeted test paper covers crucial book-back and creative interior questions from essential chapters like Laws of Motion, Optics, Thermodynamics, and Electricity. Use this practice test to sharpen your memory, eliminate silly mistakes, and master the foundational concepts needed for a perfect score.

10th Science Study Materials 2025 (New) – PDF Download & Exam Tips

X-PHYSICS

ONEMARK TEST

MARKS: 48

1. Inertia of a body depends on
a) mass of the object b) acceleration due to gravity of the planet
c) weight of the object d) Both a & b

2. The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be
a) M b) 2M c) M/4 d) 4M

3. Impulse is equals to
a) rate of change of momentum b) rate of force and time
c) rate of change of mass d) change of momentum

4. In which of the following sport the turning effect of force used
a) hockey b) cycling c) tennis d) swimming

5. Newton's III law is applicable
a) both a & b b) for a body is at rest
c) for a body in motion d) only for bodies with equal masses

6. The unit of 'g' is m s^-2. It can be also expressed as
a) N kg^-1 b) cm² s^-2 c) cm s^-1 d) N m² kg^-1

7. Plotting a graph for momentum on the Y-axis and time on X-axis, slope of momentum-time graph gives
a) Acceleration b) Force c) Rate of force d) Impulsive force

8. One kilogram force equals to
a) 9.8 × 10⁴ N b) 980 dyne c) 9.8 dyne d) 98 × 10⁴ dyne

9. If the Earth shrinks to 50% of its real radius its mass remaining the same, the weight of a body on the Earth will
a) increase by 300% b) decrease by 50% c) increase by 50% d) decrease by 25%

10. To project the rockets which of the following principle(s) is /(are) required?
a) both a and c b) Newton's third law of motion
c) law of conservation of linear momentum d) Newton's law of gravitation

11. Power of a lens is -4D, then its focal length is
a) -0.25 m b) -2.5 m c) 4 m d) -40 m

12. The refractive index of four substances A, B, C and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of light is maximum in
a) C b) A c) D d) B

13. A convex lens forms a real, inverted, diminished point sized image at focus. The position of the object is at
a) infinity b) focus c) between f and 2f d) at 2f

14. In a myopic eye, the image of the object is formed
a) on the retina b) in front of the retina c) behind the retina d) on the blind spot

15. A small bulb is placed at the principal focus of a convex lens. When the bulb is switched on, the lens will produce
a) a parallel beam of light b) a convergent beam of light
c) a coloured beam of light d) a divergent beam of light

16. Where should an object be placed so that a real and inverted image of same size is obtained by a convex lens
a) 2f b) infinity c) between f and 2f d) f

17. If V_B, V_G, V_R are the velocity of blue, green and red light respectively in a glass prism, then which of the following statement gives the correct relation?
a) V_B < V_G < V_R b) V_B = V_G = V_R
c) V_B > V_G > V_R d) V_B < V_G > V_R

18. Magnification of a convex lens is
a) either positive or negative b) zero c) positive d) negative

19. The eye defect 'presbyopia' can be corrected by
a) Bi focal lenses b) convex lens c) concave lens d) convex mirror

20. Which of the following lens would you prefer to use while reading small letters found in a dictionary?
a) A convex lens of focal length 5 cm b) A convex lens of focal length 10 cm c) A concave lens of focal length 10 cm d) A concave lens of focal length 5 cm

21. The value of universal gas constant
a) 8.31 J mol^-1 K^-1 b) 1.38 J mol^-1 K^-1
c) 3.81 J mol^-1 K^-1 d) 8.03 J mol^-1 K^-1

22. If a substance is heated or cooled, the change in mass of that substance is
a) zero b) positive c) negative d) none of the above

23. Temperature is the average _______ of the molecules of a substance
a) sum of P.E and K.E b) difference in K.E and P.E c) difference in T.E and P.E d) difference in K.E and T.E

24. If a substance is heated or cooled, the linear expansion occurs along the axis of
a) both (a) and (b) b) X or -X c) (a) or (b) d) Y or -Y

25. In the given diagram, the possible direction of heat energy

A303 K B304 K C305 K

a) A ← B, A ← C, B ← C b) A → B, A → C, B → C
c) A → B, A ← C, B → C d) A ← B, A → C, B ← C

26. Which of the following is correct?
a) Rate of change of charge is electrical power. b) Rate of change of charge is current. c) Rate of change of energy is current. d) Rate of change of current is charge.

27. SI unit of resistance is
a) mho b) joule c) ohm d) ohm meter

28. In a simple circuit, why does the bulb glow when you close the switch?
a) The switch produces electricity. b) Closing the switch completes the circuit. c) Closing the switch breaks the circuit. d) The bulb is getting charged.

29. Kilowatt hour is the unit of
a) resistivity b) conductivity c) electrical energy d) electrical power

30. When a sound wave travels through air, the air particles
a) vibrate along the direction of the wave motion b) vibrate but not in any fixed direction c) vibrate perpendicular to the direction of the wave motion d) do not vibrate

31. Velocity of sound in a gaseous medium is 330 m s^-1. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is
a) 330 m s^-1 b) 660 m s^-1 c) 156 m s^-1 d) 990 m s^-1

32. The frequency, which is audible to the human ear is
a) 50 kHz b) 20 kHz c) 15000 kHz d) 10000 kHz

33. The velocity of sound in air at a particular temperature is 330 m s^-1. What will be its value when temperature is doubled and the pressure is halved?
a) 330 m s^-1 b) 165 m s^-1 c) 330 × √2 m s^-1 d) 320 / √2 m s^-1

34. If a sound wave travels with a frequency of 1.25 × 10⁴ Hz at 344 m s^-1, the wavelength will be
a) 27.52 m b) 275.2 m c) 0.02752 m d) 2.752 m

35. The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
a) speed b) frequency c) wavelength d) none of these

36. Velocity of sound in the atmosphere of a planet is 500 m s^-1. The minimum distance between the sources of sound and the obstacle to hear the echo, should be
a) 17 m b) 20 m c) 25 m d) 50 m

37. Man-made radioactivity is also known as
a. Induced radioactivity b. Spontaneous radioactivity
c. Artificial radioactivity d. a & c

38. Unit of radioactivity is
a. roentgen b. curie c. becquerel d. all the above

39. Artificial radioactivity was discovered by
a. Becquerel b. Irene Curie c. Roentgen d. Neils Bohr

40. In which of the following, no change in mass number of the daughter nuclei takes place
i) α decay      ii) β decay      iii) γ decay      iv) neutron decay
a. (i) is correct     b. (ii) and (iii) are correct
c. (i) & (iv) are correct     d. (ii) & (iv) are correct

41. _______ isotope is used for the treatment of cancer.
a. Radio Iodine b. Radio Cobalt c. Radio Carbon d. Radio Nickel

42. Gamma radiations are dangerous because
a. it affects eyes & bones b. it affects tissues c. it produces genetic disorder d. it produces enormous amount of heat

43. _______ aprons are used to protect us from gamma radiations
a. Lead oxide b. Iron c. Lead d. Aluminium

44. Which of the following statements is/are correct?
i. α particles are photons
ii. Penetrating power of γ radiation is very low
iii. Ionization power is maximum for α rays
iv. Penetrating power of γ radiation is very high
a. (i) & (ii) are correct b. (ii) & (iii) are correct
c. (iv) only correct d. (iii) & (iv) are correct

45. Proton - Proton chain reaction is an example of
a. Nuclear fission b. α decay c. Nuclear fusion d. β - decay

46. Which of the following is/are correct?
i. Chain reaction takes place in a nuclear reactor and an atomic bomb.
ii. The chain reaction in a nuclear reactor is controlled
iii. The chain reaction in a nuclear reactor is not controlled
iv. No chain reaction takes place in an atom bomb
a. (iv) only correct b. (i) & (ii) are correct
c. (i) only correct d. (iii) & (iv) are correct

47. In the nuclear reaction ₆X¹² →^{α decay} _ZY^A, the value of A & Z are
a. 4, 8 b. cannot be determined with the given data
c. 8, 6 d. 8, 4

48. Kamini reactor is located at
a. Rajasthan b. Mumbai c. Kalpakkam d. Koodankulam