Multiple Choice Questions

Chapter 1 – Physical Quantities & Measurement

Long Questions

Chapter 1 – Physical Quantities & Measurement

Short Questions

Chapter 1 – Physical Quantities & Measurement

Exercise Questions

Chapter 1 – Physical Quantities & Measurement

Exercise Numerical

Chapter 1 – Physical Quantities & Measurement

Chapter 1 – Physical Quantities & Measurement

Why do we study physics?

Ans.    The rapid progress in science during the recent years has become possible due to the discoveries and inventions in the field of Physics. Most of the technologies of our modern society throughout the world are related to Physics. In order to get knowledge about these techniques, technologies, scientific principles and to play a vital role in new discoveries and inventions we study physics.

Name any five branches of Physics.

Ans.    (i) Mechanics (ii) Heat          (iii) Sound      (iv) Light (Optics)      (v) Atomic Physics

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How can you differentiate between base and derived quantities? (GRW 2014, 2015)

 Base Quantities Derived Quantities The quantities on the basis of which other quantities are expressed are known as base quantities. Example length, time, mass All the quantities, which can be described in terms of base quantities, are known as derived quantities. Example Force, area, volume, density etc

Identify the following as base or derived quantity:

Density, force, mass, speed, time, length, temperature and volume.

 Base units Derived Units Mass, time, length, temperature Density, force, speed, volume

Name five prefixes most commonly used.

• Kilo (k) = 103
• Mega (M) = 106
• Micro (m) = 10–6
• Milli (m) = 10-3
• Nano (n) = 10-9

The Sun is one hundred and fifty million kilometers away from the Earth. Write this

(a) As an ordinary whole number.

150, 000, 000 km

(b) In scientific notation

1.5 x 108 km

Write the numbers given below in scientific notation

(a) 3000000000 ms-1

3.0 x 109 ms-1

(b) 6400000 m

6.4 x 106 m

(c) 0.0000000016 g

1.6 x 10-9 g

(d) 0.0000548 s

5.48 x 10-5

What is the least count of the Vernier Callipers?

Ans.    The difference between one small division on main scale and one vernier scale division is       0.1 mm. It is called least count of vernier callipers.

How many divisions are there on Vernier scale of vernier callipers?

Ans.    There are 10 division on Vernier scale of the vernier calipers.

Why do we use zero correction?

Ans.    We use zero correction to take a correct measurement free of error.

What is the least count of a screw gauge?

Ans.    The minimum measurement which can be taken using a screw gauge is known as its least       count. The least count of screw gauge is 0.01 mm or 0.001 cm.

What is the pitch of your laboratory screw gauge?

The pitch of laboratory screw gauge is 1mm.

Which one of the two instruments is more precise and why?

(a) Vernier calipers

(b) Screw Gauge

Screw gauge is more precise than vernier callipers because it can measure accurately up to one hundredth part of a millimeter while vernier callipers can only measure accurately up to one tenth part of a millimeter.

What is the function of balancing screws in physical balance?

The function of balancing screws is to bring the pointer at zero position on raising the beam.

On what pan we place the object and why?

We place the object on left pan and standard masses on the right pan just for the convenience of user.

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1. Ghulam Mustafa

Sir Assalam o alaikum

1. Author

Waliakum Assalam!

1. Arhm

Sr urdu medium m send kr dy please

Ye short question bhi De ap plzz

2. Shafaqat ali

Exercise me diye gaye mcqs k answers nai diye gaye why?

1. Author

Answers lagy huay hain.. un ka text bold(dark) hai.. mcqs k options mai hi answers hain..

3. Sana

Exercise k short questions q ni diye? Or ye just 1 page he show ho rha sb categories ka baqi k pages q ni show ho rhy?

1. Author

1. Please write short questions of every chapter other than exercise questions especially physics

4. AnoUsH

Thanks you so much for this act of kindness

1. Inayat

Exercise main jo MCQS diey hoy hain un ko kaise solved karen

1. Abdullah

2. Syed Tajwar Ahmed

Last ma dekha Sara answers diye hua hain

5. hisham

there are no quic quiz

6. Tayyab Ameen

7. Safa Agent

Thank you soooo much for giving us helpful notes

1. Taimoor

This help in when i am sick and did not attended any class

2. Asfand

Where can we find free ilm lectures

8. syed muntazir

Assalam o alaikum Thank you very much sir

9. mano

thank u free ilm ur website helps me alot …

10. Hann jaya

Top of every page there is blue [open] press this and new window will pop up from there you can download pdf and study

11. rana

sir plz uplod urdu

12. M.Abuzar

there is a mistake in Problem 1.5 part b answer one zero is missing

why there are no short questions available ??????

1. Author

Prepare Long Q, and Exercise Q.. No need to prepare other short questions.

Sir but we need short questions of physics all chapter ,,, it is compulsory

15. arisha

actually sir we need model paper and lectures

16. Malaika

Sir there is no answer of MCQS book wale MCQS ka answer han but jo notes wale MCQS han un ke answer nai han plz give me the answers 🙏

1. Author

Unhi Extra MCQ’s k end py Answers bhi hain. Check.

17. Aimen

No quick quiz, mini exercises solutions given……… If there will be then these are the best ever notes…..

18. Samra

20. Hafiz Ali

Assalamoalikum every one who is reading my comment, thanks to the person who created the website, all these has really helped me.
Special Thanks to the person who has made all the notes.

22. Ayesha Ghani

23. Taha

Very good work

24. Taha

You wrk on this too much

25. AWA

Asalamu alekum, may i use your material in my notes as well

1. Author

ok

26. Khan Seth Jee

asalam aleykum kia ismy, jo book ka chapters ka andr k long question han woh bhi han?

27. Wajeeha

Sir plz numericals explain ker dain plz

28. Kauro Matsubara

Awesome! MashaAllah💎

29. ali

pleas give answers of self assesment question

30. Rajput

31. Fatima

Plz physics k quick quiz k answers bhi da dain

32. Umar Farooq

Sir plz quick quiz ka bhi answer dain

Bhai ye konsa question hai

33. Obaid

Bro itni der say load ho raha hai pdf
Aur khul nahi raha

1. Ayyan

34. Abdullah

Quick quiz number 1 ka answer’s??

35. ~SHARAN~

yar maza agya summer vacation work complete hogya

36. Ali

Sir, kia ap tips bhi add kar sakte he??

37. Minahil Aish

Sir very thank you for your kind help😘😘

38. Nobody

Great 👍 website similar to class notes’ website

39. Hussnain

Sir kia online pst test nahi hai

40. Irum

How can i dawnload? no any option

41. Amankhan