This question paper consists of 15 pages and 3 data sheets.
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Physical Sciences/P1
2 NSC
DBE/Feb.–Mar. 2013
INSTRUCTIONS AND INFORMATION 1. Write your centre number and examination number in the appropriate spaces on the ANSWER BOOK. This question paper consists of TWO sections: SECTION A SECTION B 3. 4. 5. 6. (25) (125)
2.
Answer ALL the questions in the ANSWER BOOK. You may use a non-programmable calculator. You may use appropriate mathematical instruments. Number the answers correctly according to the numbering system used in this question paper. YOU ARE ADVISED TO USE THE ATTACHED DATA SHEETS. Give brief motivations, discussions, et cetera where required. Round off your final numerical answers to a minimum of TWO decimal places.
7. 8. 9.
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Physical Sciences/P1
3 NSC
DBE/Feb.–Mar. 2013
SECTION A QUESTION 1: ONE-WORD ITEMS Give ONE word/term for each of the following descriptions. Write only the word/term next to the question number (1.1–1.5) in the ANSWER BOOK. 1.1 The type of electromagnetic radiation that is used to take pictures of the human skeleton The product of mass and velocity The principle which states that each point on a wave front acts as a source of secondary waves The unit of measurement equivalent to a coulomb per second The general term used to describe a system on which no external forces act (1) (1)
1.2 1.3
(1) (1) (1) [5]
1.4 1.5
QUESTION 2: MULTIPLE-CHOICE QUESTIONS Four options are provided as possible answers to the following questions. Each question has only ONE correct answer. Write only the letter (A–D) next to the question number (2.1–2.10) in the ANSWER BOOK. 2.1 Power is defined
