Class 10 - Science -
SA1 - Question Paper (2013)
General Instructions:
(i) The Question Paper comprises of two sections, A and B. Attempt both sections.
(ii) All questions are compulsory
(iii) All questions of Section A and all questions of Section B are to be attempted separately.
(iv) Question numbers 1 to 3 in Section A carry one mark each. These questions are to be answered in one word or in one sentence.
(v) Question numbers 4 to 6 in Section A are three marks questions. Answer each in about 30 words each.
(vi) Question Numbers 7 to 18 in Section A are three marks each. Answer each question not more than 50 words.
(vii) Questions 19 to 24 in section A are five marks each. Answer each question in not more than 70 words.
(viii) Questions numbers 25 to 33 in section B are multiple choice questions based on practical skills. Each question carries one mark.Select the most appropriate choice from the given choices.
(ix) Question Numbers 34 to 36 in Section B are questions based on practical skills and are two marks.
(i) The Question Paper comprises of two sections, A and B. Attempt both sections.
(ii) All questions are compulsory
(iii) All questions of Section A and all questions of Section B are to be attempted separately.
(iv) Question numbers 1 to 3 in Section A carry one mark each. These questions are to be answered in one word or in one sentence.
(v) Question numbers 4 to 6 in Section A are three marks questions. Answer each in about 30 words each.
(vi) Question Numbers 7 to 18 in Section A are three marks each. Answer each question not more than 50 words.
(vii) Questions 19 to 24 in section A are five marks each. Answer each question in not more than 70 words.
(viii) Questions numbers 25 to 33 in section B are multiple choice questions based on practical skills. Each question carries one mark.Select the most appropriate choice from the given choices.
(ix) Question Numbers 34 to 36 in Section B are questions based on practical skills and are two marks.
Q1: | Write the relation between electric power (W) of a device with potential difference (volt) across it and current (amp) flowing through it. | 1 |
Q2: | Name two parts which constitute the central nervous system. | 1 |
Q3: | Write the characteristic features of the micro organisms which help in the production of biogas in a biogas plant. | 1 |
Q4: | Two solution A and B have pH 3 and 5 respectively. Which of the two solutions has more hydrogen ion concentration and which one is more acidic? Give reason for your answer. | 2 |
Q5: | Give reason for the following: (a) Sodium metal is kept immersed in kerosene. (b) Blue colour of copper sulphate solution disappears when some aluminium powder is added in it. | 2 |
Q6: | Give two reasons why different electrical appliances in a domestic circuit are connected in parallel. | 2 |
Q7: | (i) Give reason ,”Magnetic field is strongest near the pole.” (ii) Describe an activity to show that magnetic field is strongest near poles of a bar magnet. |