Physical Sciences Grade 10 Eastern Cape March Test 2025 QP

OR TAMBO INLAND DISTRICT GRADE 10 PHYSICAL SCIENCES CONTROLLED TEST 13 MARCH 2025 MARKS: 75 TIME: 1 HOUR 30 MINUTES THIS QUESTION PAPER CONSISTS OF 10 PAGES INCLUDING THE COVER PAGE.

PHYSICAL SCIENCES CAPS - GRADE 10 ORTID/MARCH 2025 INSTRUCTIONS AND INFORMATION 1. This question paper consists of SEVEN questions. Answer ALL the questions in the ANSWER BOOK. 2. Start EACH question on a NEW page in the ANSWER BOOK. 3. Number the answers correctly according to the numbering system used in this question paper. 4. Leave ONE line between two sub questions, for example between QUESTION 2.1 and QUESTION 2.2. 5. You may use a non-programmable calculator. 6. You are advised to use the attached DATA SHEETS. 7. Show ALL formulae and substitutions in ALL calculations. 8. Round off your FINAL answers to a minimum of TWO decimal places. 9. Give brief motivations, discussions, et cetera where required. 10. Write neatly and legibly Copyright reserved 1 Please turn over

PHYSICAL SCIENCES CAPS - GRADE 10 ORTID/MARCH 2025 QUESTION 1 Various options are provided as possible answers to the following questions. Each question has only ONE correct answer. Choose the answer and write only the letter (A – D) next to the question number (1.1 – 1.7). For example: 1.11 B 1.1 What is the term used for the distance between two successive points in phase? A amplitude B wavelength C frequency D period (2) 1.2 The speed of a pulse is determined by the: A Pulse length of the pulse B Amplitude of the pulse C Medium through which the pulse travels D Distance the pulse travels. (2) 1.3 Which of the following diagrams best illustrates pulses which will interfere constructively when they meet up with each other? A B C D (2) 1.4 When the frequency of vibration of a wave with a period T is doubled, then its period is … A T B 2T C 0,5 T D 4T (2) Copyright reserved 2 Please turn over

PHYSICAL SCIENCES CAPS - GRADE 10 ORTID/MARCH 2025 1.5 Which Electromagnetic wave has the highest energy? A X-rays B Infrared C Ultraviolet D Gamma rays (2) 1.6 Three charges X, Y and Z are arranged in a straight line. X is positively charged and it is repelled by Y and Z is attracted by Y. What is the nature of charges Y and Z? CHARGE Y CHARGE Z A Positive Positive B Negative Positive C Negative Negative D Positive Negative (2) 1.7 The SI unit of Volt is the same as … A C .s−1 B A.s C J.s D J .C−1 (2) [14] Copyright reserved 3 Please turn over

PHYSICAL SCIENCES CAPS - GRADE 10 ORTID/MARCH 2025 QUESTION 2 Two pulses, P and Q travel along a string, and approach each other at the same speed. Both pulses have a pulse length of 8 cm. Pulse P has an amplitude of +6 cm when it is at position X. Pulse Q has an amplitude of – 8 cm when it is at position Y. Points X and Y are the same distance from point Z. Pulse P and Q meet at position Z. Assume that no energy is lost. 2.1 Define the principle of superposition. (2) 2.2 What kind interference will happen when these pulses P and Q meet at point Z. Choose CONSTRUCTIVE or DESTRUCTIVE. Explain your answer. (2) 2.3 Calculate the amplitude of the resulting pulse during interference (2) [6] Copyright reserved 4 Please turn over

PHYSICAL SCIENCES CAPS - GRADE 10 ORTID/MARCH 2025 QUESTION 3 The diagram below represents a transverse wave with a frequency of 1,5 Hz, moving to the right. 3.1 Define the term transverse wave (2) 3.2 Write down the names of the following: 3.2.1 two points that are in phase. (1) 3.2.2 point B (1) 3.2.3 point D (1) 3.3 Determine the following in meters: 3.3.1 wavelength (2) 3.4 Calculate the: 3.4.1 period of the wave (3) 3.4.2 speed of the wave (3) [13] Copyright reserved 5 Please turn over

PHYSICAL SCIENCES CAPS - GRADE 10 ORTID/MARCH 2025 QUESTION 4 Consider the diagram below. 4.1 Define the term longitudinal wave. (2) 4.2 write down the name of labels: 4.2.1 A (1) 4.2.2 B (1) 4.2.3 C (1) The diagram below shows a boat which emits ultrasound to detect the depth of the sea. The boat emitted a sound of frequency 30 000 Hz and a return signal is received in the boat 10 seconds later. Take the speed of sound waves in water to be 1500 m.s−1. 4.3 Calculate the: 4.3.1 wavelength of the ultrasound in water. (3) 4.4 Give 2 other uses of ultrasound in the field of medicine (2) [10] Copyright reserved 6 Please turn over

PHYSICAL SCIENCES CAPS - GRADE 10 ORTID/MARCH 2025 QUESTION 5 Consider the electromagnetic spectrum below and answer the questions that follow: Radio Micro Infrared A Ultraviolet B Gamma waves waves rays Use the table to answer the questions that follows 5.1 Define the term photon. (2) 5.2 Give the names of the electromagnetic radiations A and B (2) 5.3 For radiation A, with a frequency of 2,5x1016 Hz, calculate the energy of its photon. (3) 5.4 Explain why electromagnetic radiation B is best suitable to scan bones and not radiation A? (2) 5.5 Calculate the wavelength of radiation B if its photons have an energy of 7,25x10−13 J (4) [13] Copyright reserved 7 Please turn over

PHYSICAL SCIENCES CAPS - GRADE 10 ORTID/MARCH 2025 QUESTION 6 Two identical metal spheres, A and B, on an insulated surface, carry charges of - 5,3 ×10−6 C and +4,7 × 10−6 C respectively. The spheres are brought into contact with each other. 6.1 State the principle of charge quantisation. (2) 6.2 Calculate the number of excess electrons in sphere B. (3) 6.3 Give a reason why we place charged spheres on insulated stands. (1) 6.4 Will the electrons be transferred from A TO B or B TO A? Give a reason for the answer. (2) 6.5 Calculate the new charge on each sphere after it has moved away from each other. (3) 6.6 Calculate the number of electrons transferred from one sphere to the other during contact. (3) [14] QUESTION 7 Consider the following circuit below. The reading on voltmeter V1 is 6 V. The ammeter reading is 1,5 A. 7.1. Define potential difference. (2) 7. Calculate the magnitude of the reading on V2 if 8000 J of energy is used by 735 C (3) [5] TOTAL= 75 marks Copyright reserved 8 Please turn over

PHYSICAL SCIENCES CAPS - GRADE 10 ORTID/MARCH 2025 DATA FOR PHYSICAL SCIENCES GRADE 10 TABLE 1: PHYSICAL CONSTANTS NAME SYMBOL VALUE Acceleration due to gravity g 9,8 m.s-2 Speed of light in a vacuum c 3,0×108 m.s-1 Planck’s Constant h 6,63×10-34J.s Charge of electron e or qe -1,6×10-19C TABLE 2: FORMULAE WAVES, SOUND AND LIGHT 𝑣 = 𝑓𝜆 1 f = T 𝑐 𝑐 𝐸 = ℎ𝑓 or E = h 𝜆 f=𝜆 ELECTRICITY AND MAGNETISM 𝑄 𝑊 𝐼 = ∆𝑡 𝑉=𝑄 1 1 𝑉 1 𝑅=𝐼 = + + ... R p R1 R2 𝑸𝟏 +𝑸𝟐 𝑄 Q= n=𝑒 2 Copyright reserved 9 Please turn over