IB Chemistry. Derive an expression for the potential differences between two points in the electrostatic field. A 650 KW power engine of a vehicle of mass 1.5 x 105 Kg is rising on an inclined plane of inclination 1 in 100 with a constant speed of 60 km/hr. Define the coefficient of thermal conductivity, Describe, with necessary theory, an experiment for its determination in the laboratory. What is prism? Here, you can Register for IB Home Tutoring in Delhi, Gurgaon, Noida, Mumbai, Bangalore, Chennai and Hyderabad. Describe in brief the method of mixture to determine the specific heat of a solid in the laboratory? source for past papers & study materials. A Carnot engine whose low temperature reservoir is at 27°C has an efficiency of 25%. Rain drops hitting the side windows of a car in motion often leave diagonal streaks why? ©Copyright 2014 - 2021 Khulla Kitab Edutech Pvt. English and Afrikaans Languages. The Papers are for all Provinces: Limpopo, Gauteng, Western Cape, Kwazulu Natal … Physical Sciences Grade 11 Past Papers and Memos which you can download for revision purposes: 2020, 2019, 2018, 2017. The moment of inertia of it about the axis is 100 kg m2. Find the length of the image of the pole. Explain why temperature of gas drops in adiabatic expansion. Why? Page 6 Physical Sciencesof 13 Grade 11 Paper 1 June 2014 95 kg 23,2o QUESTION 3 3.1 State Newton’s first law of motion. Scalars and vectors 3. A ballet dancer can increase or decrease her spinning rate by using the principle of conservation of angular momentum, how? A convex lens is immersed in water. Mention the conditions of stable equilibrium. What is terminal velocity? Also derive its relation with superficial expansivity. Sketch an outline diagram of an astronomical telescope and derive expression for its angular magnification when the final image is formed at the least distant of distinct vision. 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It is easier to pull a lawn roller than to push it, why? If you don't see any interesting for you, use our search form on bottom ↓ . State and explain Gauss law of electrostatics and apply it to find electric field intensity on the surface and inside the surface of a charged sphere. Kinematics 4. Show that μ =$\frac{{{\bf{sin}}\left( {\frac{{\: {\bf{A}} + {\delta _{\bf{m}}}}}{{\bf{n}}}} \right)}}{{\sin \frac{{\bf{A}}}{2}}}\: $ for a prism where the notations carry their usual meanings. If a vector has zero magnitude, is it meaning full to call it vector? Phone: +94 70 247 2324 Mon - Sat: 9 am - 7 pm My Downloads This does not happen to wood. Unit and measurement 2. Free Zambian Past Papers. A second pendulum is taken to the moon. At what angle should a circular road be banked so that a car running at 50 Km/hr be safe to go round the circular turn of 200 m radius? Kinematics 4. What do you mean by elastic and inelastic collisions? A student writes an expression of the force causing a body of mass (m) to move in a circular motion with a velocity (v) as F = mv2. Find the result of mixing 0.8 kg of ice at-10°C with 0.8 kg of water at 80°C. If A and B are none zero vectors, is it possible for A x B and A. State Gauss law. Explain the significance of the banking of a curved road. Three capacitorsof the same capacitance are joined in (i) series, and (ii) all in parallel.By how much one of these combinations is larger in magnitude? What will happen to the level of water in a container when a submerged piece of ice melts completely? Explain how the capacitance of a parallel plate capacitor can be increased. Air is compressed adiabatically to half of its volume. Explain the significance of anomalous expansion of water with an example observed in nature. If the larger mass has an initial K.E. Justify your answer. State Gauss's theorem in electrostatics Use this theorem to calculate the electric field due to a solid charged sphere at a point inside it. Show that total mechanical energy of a body is conserved when it moves under the action of gravitational field. 7. With the help of a labeled diagram, explain the principle and working of a compound microscope. Explain with example. Pastpapers wiki was founded in October 2019 by Education Resources.lk. Download grade 11 physics past papers 2015 document On this page you can read or download grade 11 physics past papers 2015 in PDF format. Explain. Physical Science grade 11 Exam papers . What is chromatic aberration? A force (in Newton) expressed in vector notation as F = 4i   + 7 ĵ - 3 k̂ is applied on a body and produces a displacement (in meter), D = 3î - 2ĵ - 5K̂ in 4 seconds. Calculate the loss of energy after connection. Using Stoke’s formula, find the expression for the terminal velocity. Explain how it can hit the target. Which one reaches the bottom first? What is the apparent position of an object below a rectangular glass slab of refractive index 1.45 and the thickness 0.06 m if a layer of water 0.05 m thick is on the top of the glass slab? Physical Science Grade 12 past papers and revision notes 2021, 2020, 20219 and more Exam Past Papers Memos, Free Pdf Downloads for Textbooks and Study Guides. Grade 5 Schoolership Exam, Ordinary Level and Advanced Level Past Papers. They are for all the chapters recommended by the current curriculum system and at the end of each activity the user can view the solutions of that particular activity after going through it. Show for a lens, the chromatic aberration is the product of dispersive power and, its mean focal length. A SHM is represented as y =a cos (wt+ ϕ) in usual notation. Define reflection, transmission and absorption coefficients of heat radiation and relate them. What is escape velocity? Which one has more linear momentum? Determine the dimensional formula tor gravitational constant (G). Define centripetal force. Express the dimension of the velocity gradient from the definition of the coefficient of viscosity. Explain the method of determining the latent heat of fusion of ice by the method of mixture in laboratory. From what height should a block of ice be dropped in order that it may melt completely? My Cart: (0). Use it to find the electric field due to an infinite plane conductor. Derive an expression for the energy stored in stretched wire. Calculate the thermal efficiency of heat engine. Solved NEB Compulsory English Grade 11-XI Question Paper 2076-2019, Subject Code-002B 2. A cricketer lowers his hands while catching balls. Click below for NCERT Class 11 Physics to download solved sample papers, past year Question Papers with A stick partially dipped in water seems to be bent. Solve them to get thorough with question paper pattern and difficulty level of exam. Will its focal length change? Write with one example of each. State the factors on which the deviation produced by a prism depend. Prove the relation Pvγ= constant, where notations carry usual meanings. At what temperature will the Celsius scale reading double the Fahrenheit reading? Solved CBSE Sample Papers for Class 11 Physics for 2019 board exams. A Carnot engine works between "the source and the sink with 25% efficiency. In rain a scooter may slip on the turning of a road. What if they are connected in parallel? In order to increase the efficiency to 50%, how much the temperature of the high temperature reservoir be increased, if the temperature of the low temperature reservoir remains constant. What is. (Stefan’s constant= 5.7x10-8 Wm-2K-4). What types of mirror will you suggest for shaving or make-up purpose and why? The sun is a black body of surface temperature about 6000 K. If the sun’s radius is 7x108m, Calculate the energy per second radiated from its surface. How? Download Question Papers for Class 11 Physics for past years 10 year, Access solved Question Papers for Class 11 Physics for previous years issued by CBSE and NCERT. Why the temperature is constant during change of state of the substance? Available in English and Afrikaans Languages. A negatively-charged oil drop, mass 4.8x10 -15 Kg, is situated between the plates. Show that two lenses form an achromatic doublet it the ratio of their local lengths is numerically equal to the ratio of the corresponding dispersive powers of their materials. Write the unit of this expansivity. Define coefficient of viscosity and poise. The maximum kinetic energy of the mass? When both of them are at 10°C, the measured length is 50cm. A capillary tube of 0.3 m diameter is placed vertically inside a liquid of density 800 Kg -3, surface tension 5 x 10 -4 Nm-1 and angle of contact 30°. Prove that the colliding objects exchange their velocities in one dimensional elastic collision. What are the characteristics of a gas to be an ideal? Explain. 11th Class Past Papers of all Boards 2019 - 2019 Past Papers of Inter Part 1 Past papers of All boards of Intermediate Part I/ FSC (pre-medical, pre-engineering), ICS, I.Com, and FA The first year is the most difficult year of your HSSC before going for the final year exams.. Calculate its temperature if it behaves as a black body. If you are given two objects one is heavier and another is lighter, both have the same kinetic energy. Class 11 Past Papers are free and will always remain free. A pole 1 m long is laid along the principal axis of a convex mirror of focal length 1 m. The end of the pole nearer the mirror is 2 m from it. Derive an expression tor it. These Grade 11 lessons are tort by some of the best science teachers in South Africa. Explain the concept of geostationary satellite. Show that the chromatic aberration is the product of dispersive power and mean focal length of a lens. Calculate its dimensions. B both to be zero? Find its horizontal range. Ltd. Water in earthen pot remains cold m summer. ©Copyright 2014 - 2021 Khulla Kitab Edutech Pvt. 2018 ASC May/June 2018 Physical Sciences Paper 1 2018 Physical Sciences Paper 1 … In usual notation, a simple harmonic motion is given as y = a sin (wt - θ ). Derive an expression for energy stored in a stretched wire. Why are small liquid drops always spherical in shape? Draw an outline sketch to show the chromatic aberration in the case of a lens. Does the refractive index depend upon the wavelength of light? Explain. Do you expect the gas in cooking gas cylinder to obey the ideal gas equation? What do you mean by charging by conduction and charging by induction? Physical Sciences Grade 12 Past Exam Papers and Memos 2020 – 2019 Papers include (Main and Trial Exams): February/March, May/June, August/September and October/November/December – Paper 1 and Paper 2, Supplementary. Calculate the horizontal range covered by the bullet. Draw a clear ray diagram to illustrate the action of a compound microscope. From 2020, we have made some changes to the wording and layout of the front covers of our question papers to reflect the new Cambridge International branding and to make instructions clearer for candidates - learn more . Discuss the motion of a car moving round in a circular banked track. Find the equivalent capacitance of two capacitors when they are connected (i) in series and (ii) in parallel. Grade 11- Past Papers and term test papers- English/sinhala/tamil medium from all major schools and provinces. Define electric potential. A clock which has a brass pendulum beats seconds correctly when the temperature of the room is 30°C. Estimate the power. Ltd. What is a black hole? the potential" energy of the spring when the mass is 5mm below the centre of oscillation? of the smaller mass? Find an expression for the total energy of the moon revolving around the earth. Download free ECZ past papers in PDF format. Grade 11 Past Papers Grade 11- Past Papers and term test papers- English/sinhala/tamil medium from all major schools and provinces. Find the velocity of the smaller mass. Why? 6. What will be the least speed with which it can be projected to achieve the same horizontal range? Use your knowledge of Laws of motion 5. Discuss the methods of heat transmission. How can a neutral body be charged with negative electricity by induction? The initial kinetic energy of larger mass is 10 J. What is the difference between a real and an ideal gas? Examination Council of Zambia Grade 7, 9 and 12 Past Papers free download from ZEDPastPapers. Explain the difference between a polar end a non-polar dielectrics with one example of each. Define power of accommodation and persistence of vision. Also calculate the maximum height attained. Three capacitors of 1μ f, 2μf and 3μf .The same capacitors are again connect in parallel. Download question papers with solutions in pdf free Explain on the basis of the hypothesis of the kinetic theory. Define capacitance of a capacitor. [2021 Updated] OFFICIAL IB PAST PAPERS. Derive an expression for the orbital velocity and hence find time period of the satellite revolving around the earth. Why is its value more near the sea shore? How much temperature of the sink be lowered keeping the source temperature constant so that its efficiency increases by 10%? Explain the difference between a "push" and a "pull" in the case of a heavy roller on a level road where the force acts on the roller making an angle with the horizontal road. Title Grade 11 Physics Past Papers Author powerprogress.pplelectric.com-2021-02-20T00:00:00+00:01 Subject Grade 11 Physics Past Papers Keywords grade, 11, physics, past, papers Created Date 2/20/2021 3:56:22 PM Neglecting the density of air. How is it that ice cream appears cooler to the mouth than ice at 0 °C? Does it keep correct time? Justify your answer. Explain, with necessary theory, the capillary tube method for the measurement of surface tension of a Liquid. If you wet your hand and pickup an ice tray that is below 0°C, your hand may stick to it. If the displacement of a body is proportional to square of time, state the nature of motion of body. Explain in terms of breaking stress why elephant has thicker legs as compared to human beings? A stationary mass explodes into two parts of mass 4 kg and 40 kg. Topic-wise assignment question papers based on past 10 year IB papers. Can a convex mirror ever form real image? ( α for brass= 24x10-6°C a for iron= 16x106 °C-1. Can a body have a constant speed but changing velocity? Two positive charges separated by a distance create an electrostatic field Can i. electric potential, and {ii) electric field intensity be zero at a point between the charges? What do you understand by 1 lumen and 1 phot? Define thermal conductivity. Derive an expression for the magnifying power. A projectile is launched with an initial velocity of 30ms-1 at an angle of 60° above the horizontal.