HM Science Academy

Eid Ul Adha Mubarak to all Dear Subscribers

18 hours ago | [YT] | 10

HM Science Academy

1st Year and 2nd Year Students (FBISE) Note please..
Videos for Complete Guidance for your papers will be available right from today...
1: Chemistry 2nd Year at 10am
2: Maths 1st Year at 6pm

2 weeks ago | [YT] | 19

HM Science Academy

Forgein Students Only...
This post is for 9th, 10th FBISE foreign students only ...
As your papers were postponed and new date sheet may be issued in 15 days so you have a almost 20-25 days time for paper preparation.
We have a paid guidance course for you in which we will discuss morning and evening papers FBISE 2026 and will guide you like Pro-tips that how can you score maximum marks.
It's a Paid Course. For further guidance contact on our what's app
+92 315 5344393
*HM Science Academy*

1 month ago (edited) | [YT] | 22

HM Science Academy

All subscribers note please...
5 Videos For Tomorrow at 6pm
1) Maths For 10th (Model Paper and Question wise Discussion)
2: Biology For 9th Complete Guidance
3: Computer For 9th Complete Guidance
4: General Science For 10th Complete Guidance
5: General Maths 9th

1 month ago (edited) | [YT] | 22

HM Science Academy

10th Video For Mathematics For 100% Marks will be available at 6pm today...So don't be lazy guys!

1 month ago | [YT] | 27

HM Science Academy

📚 PHYSICS SSC-I (Important MCQs & FORMULAS)

🔹 Units & Measurements

1. 1 femtogram =
A) 10⁻¹²g B) 10⁻¹⁵g C) 10⁻⁹g D) 10⁻⁶g
✅ Answer: B) 10⁻¹⁵g
Formula: 1 femto = 10⁻¹⁵

2. The number of base units in SI is:
A) 3 B) 5 C) 7 D) 9
✅ Answer: C) 7

3. 1 Megameter (Mm) is equal to:
A) 10³m B) 10⁶m C) 10⁹m D) 10¹²m
✅ Answer: B) 10⁶m

4. Which is the smallest quantity?
A) 2mg B) 200μg C) 0.02g D) 2000ng
✅ Answer: D) 2000ng

5. The least count of a digital stopwatch is:
A) 1s B) 0.1s C) 0.01s D) 0.001s
✅ Answer: C) 0.01s

6. How many millimeters are in 1 meter?
A) 10 B) 100 C) 1000 D) 10000
✅ Answer: C) 1000

🔹 Motion & Kinematics

7. A car accelerates at 2 m/s² for 5s. Change in velocity is:
A) 2 m/s B) 7 m/s C) 10 m/s D) 2.5 m/s
✅ Answer: C) 10 m/s

8. A ball is dropped from a tower. Initial velocity is:
A) 10 m/s B) 9.8 m/s C) 0 m/s D) Negative
✅ Answer: C) 0 m/s

9. A horizontal line on a speed-time graph represents:
A) Rest B) Uniform acceleration C) Uniform speed D) Variable velocity
✅ Answer: C) Uniform speed

10. If a body moves with constant velocity, acceleration is:
A) Increasing B) Decreasing C) 9.8 m/s² D) 0 m/s²
✅ Answer: D) 0 m/s²

11. A sprinter completes 100m in 10s. Average speed is:
A) 5 m/s B) 10 m/s C) 20 m/s D) 100 m/s
✅ Answer: B) 10 m/s

🔹 Dynamics & Forces

12. A force changes momentum by 80 kg·m/s in 4s. Force is:
A) 20N B) 320N C) 40N D) 84N
✅ Answer: A) 20N

13. Inertia depends upon:
A) Force B) Velocity C) Mass D) Acceleration
✅ Answer: C) Mass

14. Action and reaction forces act on:
A) Same body B) Different bodies C) Different times D) Same direction
✅ Answer: B) Different bodies

15. Weight of a 5kg body on Earth is:
A) 5N B) 50N C) 0.5N D) 500N
✅ Answer: B) 50N

16. Which reduces friction?
A) Rough surfaces B) Increasing mass C) Lubricants D) Increasing area
✅ Answer: C) Lubricants

🔹 Work, Energy & Power

17. A machine lifts 500N to 4m in 10s. Power is:
A) 200W B) 2000W C) 50W D) 125W
✅ Answer: A) 200W

18. Work done is zero when angle between force & displacement is:
A) 0° B) 45° C) 90° D) 180°
✅ Answer: C) 90°

19. Kinetic energy of 2kg mass moving at 3 m/s is:
A) 6J B) 9J C) 12J D) 18J
✅ Answer: B) 9J

20. Unit of energy is same as:
A) Power B) Force C) Work D) Momentum
✅ Answer: C) Work

21. Unit of power is:
A) Joule B) Newton C) Watt D) Pascal
✅ Answer: C) Watt

🔹 Rotational Motion

22. A door handle 0.4m long with 10N force gives torque:
A) 40 Nm B) 4 Nm C) 0.4 Nm D) 10.4 Nm
✅ Answer: B) 4 Nm

23. A body is in equilibrium if net force is:
A) Maximum B) 10N C) 0N D) Constant
✅ Answer: C) 0N

24. Center of gravity of a uniform rod is at:
A) One end B) Center C) Outside D) Top
✅ Answer: B) Center

25. Torque is a:
A) Scalar B) Vector C) Base D) Unitless
✅ Answer: B) Vector

26. To increase torque, we should:
A) Decrease force B) Decrease arm C) Increase arm D) Keep constant
✅ Answer: C) Increase moment arm

🔹 Properties of Matter

27. SI unit of pressure is:
A) Nm B) N/m C) N/m² D) kg/m
✅ Answer: C) N/m²

28. Density is:
A) Mass × Volume B) Mass / Volume C) Weight / Volume D) Force / Area
✅ Answer: B) Mass / Volume

29. Which state has fixed shape & volume?
A) Gas B) Liquid C) Solid D) Plasma
✅ Answer: C) Solid

30. Atmospheric pressure is measured by:
A) Thermometer B) Barometer C) Calorimeter D) Voltmeter
✅ Answer: B) Barometer

🔹 Thermal Physics

31. Ability to detect small temp changes is:
A) Range B) Accuracy C) Sensitivity D) Linearity
✅ Answer: C) Sensitivity

32. Refrigerator working is part of:
A) Mechanics B) Thermodynamics C) Atomic Physics D) Sound
✅ Answer: B) Thermodynamics

33. Boiling point of water in Kelvin:
A) 100K B) 273K C) 373K D) 0K
✅ Answer: C) 373K

34. Specific heat of water:
A) 4200 J/kg·K B) 2100 C) 1000 D) 500
✅ Answer: A) 4200 J/kg·K

35. Evaporation causes:
A) Heating B) Cooling C) No change D) Boiling
✅ Answer: B) Cooling

🔹 Electricity & Magnetism

36. Electromagnet is found in:
A) Electric Bell B) Stove C) Bottle D) Chair
✅ Answer: A) Electric Bell

37. Loudspeakers use:
A) Diamagnetic B) Paramagnetic C) Ferromagnetic D) Non-magnetic
✅ Answer: C) Ferromagnetic

38. Device converting AC to DC:
A) Transformer B) Rectifier C) Capacitor D) Resistor
✅ Answer: B) Rectifier

39. Magnetic lines go from:
A) South→North B) North→South C) East→West D) Center→Edge
✅ Answer: B) North to South

40. Electric current unit is:
A) Volt B) Ohm C) Ampere D) Watt
✅ Answer: C) Ampere

🔹 Waves & Optics

41. Branch dealing with light:
A) Acoustics B) Optics C) Mechanics D) Nuclear
✅ Answer: B) Optics

42. Study of sound is:
A) Optics B) Astronomy C) Acoustics D) Cosmetology
✅ Answer: C) Acoustics

43. Sound travels fastest in:
A) Air B) Water C) Steel D) Vacuum
✅ Answer: C) Steel

44. Speed of sound in air is:
A) 3×10⁸ B) 340 C) 1500 D) 5000
✅ Answer: B) 340 m/s

🔹 General Physics

45. Renewable energy source:
A) Coal B) Gas C) Solar D) Oil
✅ Answer: C) Solar

46. Distance is a:
A) Vector B) Scalar C) Derived D) Complex
✅ Answer: B) Scalar

47. Value of g on Moon:
A) 10 B) 1.6 C) 6 D) 0
✅ Answer: B) 1.6 m/s²

48. Formula for weight:
A) W = m/g B) W = mg C) W = F/d D) W = P/t
✅ Answer: B) W = mg

49. Hooke’s law constant k (F=20N, x=0.5m):
A) 10 B) 40 C) 0.025 D) 100
✅ Answer: B) 40 N/m

50. Einstein’s equation:
A) E = mc B) E = m/c² C) E = mc² D) E = m²c
✅ Answer: C) E = mc²

1 month ago | [YT] | 17

HM Science Academy

Dear Students...
Physics 9th Class FBISE Detail Guidance for 100% Marks video will be available at 6m today Inshallah...

1 month ago | [YT] | 24

HM Science Academy

Two Videos for tomorrow 9am...
1: Chemistry 20 Most Important Topics for 10th
2: General Maths 9th

1 month ago | [YT] | 29

HM Science Academy

*Correction In Lipid Emulsion Test Final Color*
✔️ Emulsion Test Result:
Positive (lipids present): Milky white / cloudy emulsion
Negative (no lipids): Clear solution

1 month ago | [YT] | 28

HM Science Academy

Two Videos on tomorrow
1: Islamiat For 9th Class at 9am
2: Chemistry For 10th Class at 6pm

1 month ago | [YT] | 22