𝓢𝓪𝓳𝓲𝓭 𝓐𝓶𝓪𝔃𝓪𝓲

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𝓢𝓪𝓳𝓲𝓭 𝓐𝓶𝓪𝔃𝓪𝓲

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𝓢𝓪𝓳𝓲𝓭 𝓐𝓶𝓪𝔃𝓪𝓲

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𝓢𝓪𝓳𝓲𝓭 𝓐𝓶𝓪𝔃𝓪𝓲

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𝓢𝓪𝓳𝓲𝓭 𝓐𝓶𝓪𝔃𝓪𝓲

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𝓢𝓪𝓳𝓲𝓭 𝓐𝓶𝓪𝔃𝓪𝓲

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𝓢𝓪𝓳𝓲𝓭 𝓐𝓶𝓪𝔃𝓪𝓲

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𝓢𝓪𝓳𝓲𝓭 𝓐𝓶𝓪𝔃𝓪𝓲

*Important Topics for IX Computer Studies 2021, Karachi Board*

Chapter "Fundamentals of the operating system"
1. Functions of the operating system
Explain any six.

Chapter "Data Communication and Computer Network"
1. Difference between an analog signal and digital signal
2. Difference between physical address and logical address
3. Components of communication system
4. Properties of good communication system

Chapter "Fundamentals of Computer"
1. Electronic era or modern age (long)
2. Classification of computers
. According to data handle
. According to purpose
. According to size
3. Microprocessor and its components (long)
4. Buses their its types
5. Basic operation of computer
6. System software and application software differences or if theory explain with two examples of each software

Chapter "Computer Security and Ethics"
1. Hackers and crackers
2. Debit or credit card scamming

Chapter "Web Development"
1. Definitions of terms any five
2. Four steps to create ate web page in HTML

Chapter "Introduction to Database System"
1. Basic components of a database
2. Database management system (DBMS) and names the software

4 years ago | [YT] | 21

𝓢𝓪𝓳𝓲𝓭 𝓐𝓶𝓪𝔃𝓪𝓲

Online Physics M. C. Qs. Test for Class IX and X
Chapters 01-10
Link for the test:
docs.google.com/forms/d/e/1FAIpQLScVN0bqmu5sUu0VU7…
Candidate ID is your Name in Capital Letters.
Password: 5986

Chapters 11-19.
Link for the test:
docs.google.com/forms/d/e/1FAIpQLSfnvfgxbd2dYO_gpU…
Candidate ID is your name in Capital Letters
Password: 3031

5 years ago | [YT] | 34

𝓢𝓪𝓳𝓲𝓭 𝓐𝓶𝓪𝔃𝓪𝓲

AL-SHAMS PUBLIC SCHOOL
10TH PHYSICS GUESS PAPER 2020-2021 FOR SINDH BOARD
SECTION-B (SHORT ANSWERS QUESTIONS)
PART ‘A’
Q1: Write the importance of physics in daily life.
Q2: Define physics and any 3 branches of physics.
Q3: Define measurement. Which is more accurate a Vernier Caliper or a Screw Gauge and why?
Q4: Write differences between:
(i) Mass and Weight
(ii) Heat and Temperature
(iii) Stress and Strain
(iv) Nuclear Fusion and Nuclear Fission
(v) p-type and n-type substances
(vi) Kinetic Energy and Potential Energy
(vii) Concave Mirror and Convex Mirror
(viii) Convex Lens and Concave Lens
(ix) Refraction and Reflection
(x) Forward Bias and Reverse Bias
(xi) Longitudinal Waves and Transverse Waves
Q5: Define equilibrium and write conditions of equilibrium.
Q6: Define all states of equilibrium with examples.
Q7: State all Newton's laws of motion and derive F=ma.
Q8: Define the Resolution of vectors. Explain the method to resolve a vector into its rectangular components.
Q9: Define power and derive P=Fv
Q10: State the following laws.
(i) Law of conservation of momentum
(ii) Hooke's Law
(iii) Boyle's Law
(iv) Charles law
(v) Ohm's law
(vi) Laws of Refraction and Reflection
Q11: Write down the conclusion derived from the force on a current-carrying conductor in a magnetic field.
Q12: Give the scientific reason:
(i) In extremely cold weather water supply pipes are burst in cold areas, why?
(ii) Why a needle sink in water however a large ship floats on the surface of the water in the sea?
(iii) It is dangerous to jump from a fast-moving vehicle.
PART ‘B’
Q13: A body starting from rest acquires a velocity of 10m/s in 5 sec. Calculate (a) the acceleration (b) the distance covered by the body in 5 sec.
Q14: Calculate the length of the second's pendulum.
Q15: The potential difference applied to the terminals of portable radio is 9 volts. Find the resistance of the radio if a current of 25mA is flowing through it.
Q16: How much work is done to displace horizontally a body 400 cm by a force of 200N, whose angle with the horizontal is 30°.
Q17: 0.5 Kg of copper needs 1905 J of heat to raise its temperature to 10°C. Calculate the heat capacity of the sample.
Q18: Find the acceleration of a body whose velocity increases from 11m/s to 33m/s in 10 seconds.
Q19: Find the two rectangular components of a force 100 N which is acting at an angle of 30° with the x-axis.
Q20: A string 2m long used to whirl a 200 gm stone in a horizontal circle at a speed of 2m/s. Find the tension in the string.
Q21: Find the pressure exerted by a 450N woman putting all her weight onto one heel of area 2cm× 2cm.
Q22: A force is applied perpendicularly on a door 400cm wide which required torque of 1200 Nm to open it. What will be the minimum force required?
Q23: The mass of the proton is 1.67×10-27g. Convert it into Kilogram, Centigram, Milligram and Microgram.
Q24: A bullet of 10 gm is fired from a gun of 10 kg with a velocity of 100m/s. Find the velocity of the recoil of the gun.
Q25: Calculate the gravitational force between two balls of masses 100gm and 200gm are placed at a distance of 2m.
Q26: With what constant velocity can a 1960 Watt motor raise a mass of 100Kg?
Q27: What is the pressure of 200 moles of a gas in a 50 cubic meter cylinder at 27°C?
Q28: The focal length of a convex lens is 18 cm. An object 5 cm high is placed at a distance of 12 cm from the lens. Determine the position, nature and height of the image.
SECTION-C (DETAILED ANSWERS-QUESTIONS)
Q29: Derive the second and third equation of motion.
Q30: State law of universal gravitation. Derive the formula for the mass of Earth or the value of g at a certain height.
Q31: Derive the formula for Kinetic Energy.
Q32: State Archimedes principle and verify that the net upthrust is equal to the weight of the liquid displaced by a body.
Q33: Derive β=3∝
Q34: Derive mirror equation for spherical mirrors.
Q35: State Pascal’s Law and write its application.
PREPARED BY MA'AM LARAIB ASLAM

5 years ago | [YT] | 61