CODE-AFDN-VIII 29/07/2016 Regd. Office : Aakash Tower, Plot No.-4, Sec-11, MLU, Dwarka, New Delhi-110075 Ph.: 011-47623456 Fax : 011-47623472 Fortnightly Subjective Test-5 (FST) MM : 30 Time : 1 Hr. Integrated Classroom Course for Olympiads and Class-VIII (2016-2017) Topics Covered : Physics : Sound Chemistry : Materials : Metals & Non-Metals Biology : Conservation of Plants and Animals GENERAL INSTRUCTIONS : 1. 2. 3. 4. 5. 6. All questions are compulsory and the duration for the Test is 1 hour. Question numbers 1 to 3 carry one mark. This is multiple choice type question. Question number 4 carry two marks. This is multiple choice type questions. Question number 5 carries one mark. This is to be answered in either one word or one sentence. Question numbers 6 carries two marks. This is to be answered in about 30 words. Question numbers 7 to 10 carry three marks each including 1 value based question. These are to be answered in about 50 words. 7. Question numbers 11 & 12 carry five marks each. These are to be answered in about 70 words. 8. Use of calculator is not permitted. 9. It is mandatory to use Blue/Black Pen to write the answer. 10. Fiil up the form correctly and answer the question in the specified fields only 11. After answering scan and make pdf for uploading. 12. Submit the answer sheet before 31st July 2016 11:59 PM. FOR OFFICE USE ONLY Marks obtained in : Name : _________________________________________________ Physics Chemicstry Section : 8R-01 (VIIIth Weekday Batch) Biology Roll No./ PSID Total (To be filled by the Examiner) (1) (d) Fauna are the plants found in a particular area. (c) and (d) (2) (a) and (c) only (3) (b) and (d) only (4) (b) and (c) only Very Short Answer Type Questions : Q5. (b) & (c) Which of the following metals is found in nature in the native form? (1) Sodium (2) Potassium (3) Calcium (4) Gold Multiple Choice Type Questions : Q4. [1×2 = 2] Which of the following statements are true? (a) IUCN has prepared book list known as Red Data Book. (c) Bison is the endemic fauna of the Pachmarhi Biosphere Reserve. (1) (a) & (b) (2) (b) & (c) (3) (a) & (c) (4) All (a). (b). Q2. (1) (a). [3×1 = 3] In which of the following instruments sound is produced by vibrating the strings? (1) Clarinet (2) Mridangam (3) Sarod (4) Both (1) & (2) Which of the following metals are the constituents of solder? 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 (a) Copper (b) Tin (c) Lead Q3.Class-VIII Fortnightly Subjective Test (FDNG1_FST5A) SCIENCE Multiple Choice Type Questions : Q1. [1] Ans. (b) Forest act is formed for the protection of tigers. [1×1 = 1] Define vibration. (2) . [1×2 = 2] (i) Define biodiversity. [4×3 = 12] (i) What is an echo? Give any two applications of echo. Short Answer Type Questions : Q7. (3) . [1½] (ii) What are the frequency ranges for infrasonic and ultrasonic sound wave? [1½] Ans. [1] (ii) Which is the largest national park of the world? [1] Ans.Fortnightly Subjective Test (FDNG1_FST5A) Class-VIII Short Answer Type Questions : Q6. (i) What is migration? [1] (ii) Define reforestation. (4) .Class-VIII Q8. [1] (iii) What are endemic species? [1] Ans. Fortnightly Subjective Test (FDNG1_FST5A) Give an example of [3] (i) A metal which is liquid at room temperature (ii) A soft metal (iii) A metal which has very low melting point (iv) A lustrous non-metal (v) A non-metal with good electrical conductivity (vi) A non-metal present in atmosphere Ans. Q9. Karan saw a barren land behind his school. What is the relation in between amplitude of vibration and intensity of sound? [2] (5) . Find its [3] Displacement (m) (a) Amplitude (b) Wavelength (c) Frequency 2 0 1. (i) Write any two benefits of planting trees [2] (ii) What value is shown by Karan? [1] Ans. He convinced some of his friends to plant trees on that land. (i) The nature of sound wave travelling in a medium with speed of 300 m/s is shown in below graph.Fortnightly Subjective Test (FDNG1_FST5A) Class-VIII Value Based Question : Q10.5 Distance (m) (ii) Define intensity of sound. Long Answer Type Questions : [2×5 = 10] Q11. The very next day they started planting new trees. Class-VIII Fortnightly Subjective Test (FDNG1_FST5A) Ans. (6) . Ans.Fortnightly Subjective Test (FDNG1_FST5A) Class-VIII Q12. [1] (ii) Give any two uses of metals and two uses of non-metals. (7) [4] . (i) Define corrosion.