# Sample Paper ICSE Class 10 Physics Set A

Students can refer to the following Sample Paper ICSE Class 10 Physics Set A with Answers provided below based on the latest syllabus and examination guidelines issued for ICSE Physics. All specimen papers have been prepared covering all chapters given in ICSE Physics book for Class 10. You should also refer to ICSE Class 10 Physics Solutions.

Sample Paper ICSE Class 10 Physics Set A with Answers

PHYSICS – X
Name: Marks:80
Id.no:_
Time: 2 hours

Instructions: Answer to this paper must be written on the paper provided separately.
You will NOT be allowed to write during the first 15 minutes.
This time is to be spent in reading the question paper.

Section –I is compulsory .Attempt any four question from Section-II
The intended marks for questions are given in the brackets [ ].
All working, including rough work, should be done on the same sheet
as the rest of the answers.

Sample Paper ICSE Class 10 Physics Set A
Section – I (Compulsory)

Question-1
(a).What is the maximum potential energy gained by a ball of mass 0.20 kg When it is thrown vertically upwards with an initial velocity of 20 m/s. 
(b).Name the physical quantity which is measured in terms of electron-volt. .Give the relation between electron-volt and SI unit of the quantity.  .
(c) (i) State the law of conservation of energy.
(ii).Name the form of energy which a body posses even when it is not in motion . 
(d).Name a machine which can be used to
(i). multiply force
(ii).change the direction of force applied. 
(e).(i).When does a force do work?
(ii).What is the work done by the moon when it revolves around the earth. 

Question-2
(a).Stae the two factors on which the heat absorbed by a body depends. 
(b). State the dependence of the angle of deviation:
(i).on the angle of prism.
(ii).on the wavelength of the light. 
(c). Define electrical resistance. Give its SI unit. 
(d). A boy of mass 30 kg is sitting at a distance of 2m from the middle of the see-saw. Where should a boy of 40 kg sit so as to balance the see- saw. 
(e).Samir exerts a force of 150 N in pulling a cart at a constant speed of 10 m/s.Calculate the power exerted by him. 

Question-3
(a). State the conditions of echo. 
(b). Explain why water is used as coolant in car engine? 
(c). State two characteristics of a fuse wire. 
(d).A gun is fired by an observer standing at a distance of 850 m from a cliff. Given that the speed of sound in air is 350 m/s. Find the time gap after which the observer will hear the echo of the gunshot. 
(e).An electric appliance is rated at 1000 W ,220V.If the appliance is operated for 2 hours, calculate the energy consumed by the appliance in :
(i) kWh (ii).joule. 

Question-4
(a).Give two main differences between heat capacity and specific heat capacity . 
(b).What is an Ohmic resistance? Draw the graph of V-I for Ohmic resistors. 
(c).Name two precautions to be observed while handling radioactive materials . 
(d).A hot solid of mass 60g at 100 ℃ is placed in 150 g of water at 20℃ . The final temperature recorded is 25℃.Calculate the specific heat capacity of the solid.[specific heat capacity of water = 4200j/kg℃ ] 
(e). Three resistors each of resistance 12 Ω are connected in form of a triangle.What is the equivalent resistance across any two vertices of the triangle?

Section – II (answer any FOUR)

Question-5.
(a).Define:
(i) velocity ratio.
(iii) Efficiency of a machine. 
(b).Draw a diagram to show the energy changes in an oscillating simple pendulum.Indicate in your diagram how the total mechanical energy in it remains constant during the oscillation. 
(c).A uniform metre scale can be balanced at the 70 cm mark when a mass of 0.05 kg is hung from the 94 cm mark.
(i).Draw a diagram of the arrangement
(ii).Find the mass of the metre scale. 

Question-6
(a).(i). State the laws of refraction of light.
(ii).Write a relation between the angle of incidence
(i),angle of emergence
(e),angle of prism(A) and angle of deviation
(d) for a ray of light passing through an equilateral prism. 

(b).(i) Suggest one way in each case,by which we can detect the presence of:
(ii).Give use of infrared radiations. 

(c). An object is placed in front of a lens between ist optical centre and the focus and for ms a virtual,erect and diminished image.
(i) Name the lens which forms this image.
(ii).Draw a ray diagram to show the formation of image with above Mentioned characteristics.

Question-7
(a).(i) State the type of waves which are used for sound ranging.
(ii) Why are these waves mentioned in (i) above,not audible to us ?
(iii) Give one use of sound ranging. 

(b).(i) What is an echo?
(ii) Give two conditions for echo to take place. 

(c).A man standing 25 m away from a wall produces a sound and receives the reflected sound.
(i) Calculate the time after which he receives the reflected sound if the speed of sound in air is 350 m/s.
(ii) Will the man be able to hear a distinct echo? Give a reason for your answer.

Question-6
(a).(i). State the laws of refraction of light.
(ii).Write a relation between the angle of incidence
(i),angle of emergence (e),angle of prism(A) and angle of deviation
(d) for a ray of light passing through an equilateral prism. 

(b).(i) Suggest one way in each case,by which we can detect the presence of:
(ii).Give use of infrared radiations. 

(c). An object is placed in front of a lens between ist optical centre and the focus and for ms a virtual,erect and diminished image.
(i) Name the lens which forms this image.
(ii).Draw a ray diagram to show the formation of image with above Mentioned characteristics.

Question-7
(a).(i) State the type of waves which are used for sound ranging.
(ii) Why are these waves mentioned in (i) above,not audible to us ?
(iii) Give one use of sound ranging. 

(b).(i) What is an echo?
(ii) Give two conditions for echo to take place. 

(c).A man standing 25 m away from a wall produces a sound and receives the reflected sound.
(i) Calculate the time after which he receives the reflected sound if the speed of sound in air is 350 m/s.
(ii) Will the man be able to hear a distinct echo? Give a reason for your answer.

Question-8
(a).(i) A cell is sending current in an external circuit. How does the Terminal voltage compare with the e.m.f. of the cell?
(ii) What is the purpose of using a fuse in an electrical circuit?
(iii) With what material is fuse wire made of? 

(b)(i).Write an expression for the electrical energy spent in the flow of current through an electrical appliance in terms of I,R and t.
(ii) At what voltage is the alternating current supplied to our houses?
(iii) How should the electric lamps in a building be connected? 

(c).An electrical appliance is rated 1500W – 250 V.This appliance is Connected to 250 V mains.Calculate:
(i) the resistance
(ii) the current drawn
(iii) the electrical energy consumed in 60 hours
(iv) the cost of electrical energy consumed at Rs.2.50 per kWh. 

Question-9.
(a).(i) What is the principle of method of mixtures?
(ii) What is the other name given to it?
(iii) Name the law on which the principle is based. 
(b) Some ice is heated at a constant rate and its temperature is recorded after every few seconds ,till steam is formed at 100℃.
Draw a temperature- time graph to represent the change.
Label the two phase changes in your graph. 
(c). A calorimeter of mass 50 g and specific heat capacity 0.42 J/g℃ Contains some mass of water at 20℃ .A metal piece of mass 20 g at 100℃ is dropped into calorimeter. After stirring ,the final temperature of the mixture is found to be 22℃.Find the mass of the water used in the calorimeter.[specific heat capacity of metal=0.3 J/g℃ and specific heat capacity of water = 4.2 J/g℃]

Question-10