Physical Sciences Grade 10 P1 2022 Memo

Downloaded from hlayiso.com Downloaded from Stanmorephysics.com | COR HERE Province of the EASTERN CAPE EDUCATION GRADE 10 MARKS: 100 TIME: 2 HOURS This question paper consists of 16 pages, including 1 data sheets Copyright reserved Please turn over

Downloaded from hlayiso.com Down/oedeekfeem Stanmorephysies.com October 2022 CAPS-Grade 10 INSTRUCTIONS AND INFORMATION 1. 2. 10. 11. 12. Write your FULL NAME and SURNAME on the ANSWER SCRIPT. The question paper consists of 9 questions. Answer ALL the questions in the ANSWER SCRIPT. Start EACH question on a new page in the ANSWER SCRIPT. Number the answers correctly according to the numbering system used in this question paper. Leave ONE-line open between two subquestions for example ret n QUESTION 2.1 and QUESTION 2.2. oS: You may use a non-programmable calculator. 9) You may use appropriate mathematical instrume ) You are advised to use the attached DATA steers Show ALL formulae and substitutions iat calculations. Round off your final numerical ans\lers to a minimum of TWO decimal places. Give brief explanations, motivations, et cetera where required. Write neatly and eo Ke or & ee Copyright reserved Please turn over

Downloaded from hlayiso.com Down/oedeekrfeem Stanmorephysies.com October 2022 CAPS-Grade 10 QUESTION 1: MULTIPLE-CHOICE QUESTIONS Four 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—1.10) in the ANSWER BOOK, for example 111E 1.1. The physical quantity with both magnitude and direction is called... A Velocity B Scalar c Displacement RS D Vector G (2) oS: 1.2. Agirl paddles her canoe against the current in a river. T, rent flows at 0.6 m.s* downstream and girl paddles her canoe aay .St upstream. Which of the following is the resultant velocity ofshe canoe? \ O B 1.8 m.s+ downstream es A 1.8 m.s* upstream Cc 0.6 m.s* upstream D 0.6 m.s* _— (2) im 1.3. Consider the velocit graph of an object in motion below: @ t O \O \ RY Which ONE of the graphs below represents the acceleration-time graph of the object? A B c D a hs a a v | (2) Copyright reserved Please turn over

Downloaded from hlayiso.com Down/oedeekreem Stanmorephysiés.com October 2022 CAPS-Grade 10 1.4 Which of the following statements is/are TRUE about an object travelling at a constant velocity? i) it travels in a straight line. il) it travels at the same speed as the magnitude of its velocity. iii) its displacement increases by the same amount in each time interval. A i B i and ii Cc ii and iii D __ All of the above. (2) 1.5 Asphere is released from point A, as shown in the diagram below. It passes point B and reaches a maximum height at point B. Ignore the effects of air friction. B 5h Which ONE of the statements below regarding the energy of the system is CORRECT? A The kinetic energy at A is equal to the mechanical energy at A. B The gravitational potential energy at A is equal to the kinetic energy at B. Cc The sum of the kinetic energy and gravitational potential energy at B is equal to the sum of the kinetic energy and gravitational potential energy at C. D The kinetic energy at A is equal to the gravitational potential energy at C. (2) Copyright reserved Please turn over

Downloaded from hlayiso.com Down/oedeekfeem Stanmorephysies.com October 2022 CAPS-Grade 10 1.6 Two sources, A and B produce a transverse wave. Source A produces a transverse wave having a frequency of 40 Hz. If source B produces 1 600 waves in 8 seconds, its frequency will be... A 8 times the frequency of source A. B 5 times the frequency of source A. Cc less than the frequency of source A. D greater by 80 Hz than the frequency of source A. (2) 1.7. The wave in which the particles of the medium vibrate parallel to the direction of motion of the wave, is produced by... A An ambulance B an X-ray machine Cc ripples on the surface of water D electromagnetic waves (2) 1.8 Two waves, A and B, are produced by vibrating sources with the same frequency. A and B have wavelengths of 1 m and 3 m respectively. If the speed of wave B is v, the speed of wave A will be: 1 A -v 9 1 B =v 3 Cc Vv D 3v (2) 1.9 Arod acquires a negative charge after it has been rubbed with wool. Which one of the following best explains this observation? A Positive charges are transferred from the rod to the wool. B Negative charges are transferred from the rod to the wool. Cc Positive charges are transferred from the wool to the rod. D Negative charges are transferred from the wool to the rod. (2) Copyright reserved Please turn over

Downloaded from hlayiso.com Down/oedeekrfeem Stanmorephysies.com October 2022 CAPS-Grade 10 1.10 Consider the circuit diagram with three resistors given below: G) {| 20 59 -~ Ns] How will the readings on voltmeters V1, V2 and V3 compare with each other? A Vi = V2 = V3 B Vi>V2+ V3 Cc V2>Vit+V3 D Wi=V2+V3 (2) [20] Copyright reserved Please turn over

Downloaded from hlayiso.com Down/oedeekrkeem Stanmorephysies.com October 2022 CAPS-Grade 10 QUESTION 2 A group of people pulling the rope to the opposite directions as shown below. A woman applies a force of 16 N eastwards. Two men apply forces of 19 N and 21 N against the woman. N 2 2.1 Define the term resultant vector. (2) 2.2 Determine the magnitude and the direction of the resultant vector exerted by men and woman on each other. (4) [6] Copyright reserved Please turn over

Downloaded from hlayiso.com Downj/oedsekfisem Stanmorephysies.com October 2022 CAPS-Grade 10 QUESTION 3 The Banyana-banyana soccer team members were busy warming up for their match against Morocco during the Afcon played in Algeria. Below is a diagram that represents the measurements of the soccer field used by three players, Dlamini, Biyana and Jane. 3.1 3.2 3.3 3.3.1 3.4 3.4.1 100 m B C D. A y, : ip ( / . 16m * 50m Define the term distance. (2) Dlamini started at position A, jogged to position E and back to A in 1 minute. 3.2.1 Determine the total distance covered by Dlamini. (1) 3.2.2 Calculate Dlamini’s average speed in m.s*. (3) Jane started warming up at point C. He jogged to position E and then ran to position A where he sat down. Use Vector_sc iagram to represent the displacement of Jane. Show ALL the relevant inf in. Use the SCALE 1cm=10 m. (4) Biyana ran from C to D and back to C, and then from C to E in 1.5 minutes Calculate Biyana’s average velocity. (4) [14] Copyright reserved Please turn over

Downloaded from hlayiso.com Down/oedeekrkeem Stanmorephysies.com QUESTION 4 CAPS-Grade 10 October 2022 The truck mechanic conduct tests after the repair. A truck starts from rest at a traffic light and accelerates for 4 seconds in an easterly direction. A person on the road measures the change in position during equal time intervals. The results obtained are recorded in the table below. Time (s) Position (m) (e) 0 1 10 2 20 3 30 4 40 4.1 For this test, write down the: 4.1.1 Independent variable. 4.1.2 Dependent variable. (1) (1) 4.2 Use the information in the table above and draw an accurate position-time graph on the graph paper on the attached ANSWER SHEET. 4.3 Calculate the gradient of the graph. Copyright reserved (4) (4) [10] Please turn over

Downloaded from hlayiso.com Domytaadednfeom Stanmorephysias.com October 2022 CAPS-Grade 10 QUESTION 5 Aman with a mass of 68 kg saw a boy floating under the bridge, which is 50 m above the top surface of water, as shown below. He makes a bungee jump from the bridge. Ignore the effects of air resistance. 5.1 Calculate the gravitational potential energy of the man just before he jumps from the bridge. (3) 5.2 State the law of conservation of mechanical energy. (2) 5.3. Use the law in QUESTION 5.2 to calculate the velocity of the man at a height of 20 m below the bridge. (5) [10] Copyright reserved Please turn over

Downloaded from hlayiso.com Dorrnyloadednfeom Stanmorephysias.com October 2022 CAPS-Grade 10 QUESTION 6 A transverse wave is generated in a string as shown in a picture below. It took three seconds for the wave to be completed. 6.1 For the given wave, write down the: 6.1.1 Period. (1) 6.1.2 Amplitude. (1) 6.2 If the wave travels at 2 m.s™ for 3 seconds, calculate the distance d. (3) f ermine the wavelength. (2) 4 Iculate the frequency of the wave. (3) [10] Copyright reserved Please turn over

Downloaded from hlayiso.com Dorrnylaadednfeom Stanmorephysies.com October 2022 CAPS-Grade 10 QUESTION 7 The string shown below can be used to demonstrate the wave produces by the sound. P P Mm _ 7.1 Identify the components of the wave labelled: 7.1.1 P (1) 7.1.2 Q (1) 7.2. The highest frequency that the human ear ca hear is 20 kHz. A Dolphin produces a sound in order to locate prey in water. hh PY 7.2.1 If the dolphin produces sound waves of wavelength of 5 cm, determine by means of calculations, whether the frequency produced by Dolphin can be heard by human ear. The speed of sound in water is 1 480 m.s*. (4) 7.3. A boy standing between two buildings (A and B) started to call his sister that is inside building B. A <A A sound emitted by the boy strikes building B and returns back after 0.1 s. At the same instant, the sound produced by the boy returns back after 1.5 s from building A. If the speed of sound in air is 340 m.s*, calculate the distance between building A and B. (5). [11] Copyright reserved Please turn over

Downloaded from hlayiso.com Dorrmnylaadednfeom Stanmorephysies.com October 2022 CAPS-Grade 10 QUESTION 8 Two spheres, S and T, on insulated stands, carry charges of - 7 x 10° C and +5x 10° C respectively as shown below. -7x10°C(s ) (4 )sx10%¢ eS LD Se) 8.1 Which sphere (S or T) has an excess of electrons? (1) 8.2 Calculate the number of electrons in excess. (3) THE SPHERES ARE NOW ALLOWED TO TOUCH EACH OTHER AND THEN SEPARATED AGAIN. 8.3 In which direction will electrons flow while spheres S and T are in contact? Write down only from S to T or from T to S. (1) 8.4 Calculate the new charge on each sphere after separation. (3) [8] Copyright reserved Please turn over

Downloaded from hlayiso.com Dorprylaactednfeom Stanmorephysics.com October 2022 CAPS-Grade 10 QUESTION 9 In the circuit below, the connecting wires and the battery have negligible resistance. 9.1 9.2 9.3 9.4 CO) fo 240 8O Define the term resistance. (2) Calculate the: 9.2.1 Equivalent resistance of the resistors connected in parallel (3) 9.2.2 Total resistance of the circuit (2) When the switch is closed, the voltmeter connected across the 2 © resistor measures 6 V. Determine the potential difference across the parallel combination. (1) A charge of 18 C flows through the battery, in 6 s. calculate the current in the 2 O resistor. (3) [11] TOTAL: 100 Copyright reserved Please turn over

Downloaded from hlayiso.com Dorrnylaadednfeom Stanmorephysigs.com October 2022 CAPS-Grade 10 DATA FOR PHYSICAL SCIENCES GRADE 10 PAPER 1 (PHYSICS) TABLE 1: PHYSICAL CONSTANTS NAME/NAAM SYMBOL/SIMBOOL VALUE/WAARDE Acceleration due to gravity Swaartekragversnelling Speed of light in a vacuum Spoed van lig in 'n vakuum Planck's constant Planck se konstante Charge on electron Lading op elektron Electron mass 31 Elektronmassa Me 9,11 x 10" kg g 9,8 m-s* c 3,0 x 10° m-s™ h 6,63 x 10 J-s e -1,6x 10°C TABLE 2: FORMULAE MOTION Vv; =v, +aAt Ax = v,At+tadt? V_e +Vj ve = vi? + 2aAx AX = (“gan WORK, ENERGY AND POWER U=mgh or/fof E,=mgh K=5 mv? or/of E,=5mv* Em =Ex+E,. or/of Em =K+U WAVES, SOUND AND LIGHT va=fr T=— Cc E=hf or/of E=h- ELECTROSTATICS naa Qe Git Os e 2 ELECTRIC CIRCUITS Ontat Titi, ~ R, R;, R2 R, =R,+R, +... V= 7 Copyright reserved Please turn over

Downloaded from hlayiso.com Dormytnadednfeom Stanmorephysigs.com October 2022 CAPS-Grade 10 NAME SURNAME 4.2 Copyright reserved

Downloaded from hlayiso.com Downloaded from Stanmorephysics.com Province of the EASTERN CAPE eZ, ) EDUCATION OR TAMBO INLAND DISTRICT GRADE 10 MARKS: 100 These marking guidelines consists of 11 pages. Copyright reserved Please turn over

Downloaded from hlayiso.com Bysiciandecksirom Stanmorephysics.com — ORTID/October 2022 CAPS-Grade 10/Marking guidelines (2) (2) (2) (2) (2) (2) (2) (2) (2) (2) [20] Single vector having the same effect as two or more vectors together.vV (2) 19N+21N 40 NY QUESTION 1 1.1 Dvv 12 Cvv 13 Cvv 14 Dvv 15 Cvv 16 BYY 1.7 Avv 18 BYY 1.9 ND Vee 1.10 Dvv QUESTION 2 2.1 2.2 Fm= Fr= Fm — Fw 40 N-16 NY 24 Nv, Westwards. “ (4) [6] Copyright reserved Please turn over

Downloaded from hlayiso.com Buysicianecksitrom Stanmorephyssics.com —_ ORTID/October 2022 CAPS-Grade 10/Marking guidelines QUESTION 3 3.1 Total path length travelled. Vv (2) 3.2.1 Distance= 100m+100m oa 200 m¥v (2) Distance 3.2.2 Speed = —_—_v Time 200 =—Vv 60 = 3.33 m.siv (3) 3.3 ' Displacement=50 my 50 mv r€ i ¥ direction of arrows (4) < ‘ 100 mv 3.4 Ax=CD-—DC+CE =34m-34m+50m =50 mv vi%v At = 0.56 m.stv (4) [14] Copyright reserved Please turn over

Downloaded from hlayiso.com Buysietianéeeksitiom Stanmorephysics.com — ORTID/October 2022 CAPS-Grade 10/Marking guidelines QUESTION 4 4.1.1 Timev (1) 4.1.2 Position’ (1) 4.2. The graph below shows the change in position of the Truck during equal time intervals. 40 é 30 < 2g =| 8 a 2 10 0 1 2 3 4 Time (s) Heading v Correct axis v Shape vv (4) A 4.3 Gradient = ay At _ 40-04% ~ 4-0% =10ms!v (4) [10] Copyright reserved Please turn over

Downloaded from hlayiso.com PDeweloadee:sfrom Stanmorephysics.com CAPS-Grade 10/Marking guidelines QUESTION 5 5.1 Ep=mghyv = (68) (9.8) (50) v = 33 320 Jv 5.25 Thetotal energy of an isolated system remains constant. VV 5.3 (Ep + Ek)top = (Ep + Ek)bottomY 33 320% + Ov = (68) (9.8) (80) v + 5(68) v? 33 320 = 19 992 + 34 v? V = 19.80 m.s?, downwardsY ORTID/October 2022 (3) (2) (5) [10] QUESTION 6 6.1.1 1sv (1) 6.1.2 15m+2 = 0.75 mY (1) -A 6.2 vax. 2= dav d=6mv (3) 63 A=6m+3 =2mvv (2) 6.4 OPTION 1 OPTION 2 OPTION 3 v=fiv f= Roof waves / folv ~ time “T 2=f(2)v tedy tety f=1H2v ° : y f=1Hzv f=1Hz (3) [10] Copyright reserved Please turn over

Downloaded from hlayiso.com Buysicianecksitrom Stanmorephysics.com — ORTID/October 2022 CAPS-Grade 10/Marking guidelines QUESTION 7 7.1.1 P-CompressionY (1) 7.1.2 Q-Wavelengthy (1) 7.2 v=fav 1 480 = f (0.05) v f = 29 600 Hz v f=29.60 kHz The human ear cannot hear the frequency produced by the DolphinY (4) =A 7.30 vEAX/y 340 = AX/y Ax = 34 mv Ax = 510 mv Distance = 34m +510m = 544 mv (5) [11] Copyright reserved Please turn over

Downloaded from hlayiso.com Buysicianecksitrom Stanmorephysics.com — ORTID/October 2022 CAPS-Grade 10/Marking guidelines QUESTION 8 81 Sv (1) 8.2 n= gy, e __-7x107° ~~ 1.6 x10719 = 4.38 x 101° electronsY (3) 83 StoTv (1) 38.4 Qa Bey —7x10~°+5x10~9 = Oey 2 =-—1x10-°Cv (3) [8] QUESTION 9 9.1 The ratio of the potential difference across a resistor to the current in the resistor. VV (2) 9.2.1 Ry = BXRy Ry+ Ro = 24 x8y 2448 =6 QV (3) 9.2.2 Rr=Rs+ Rv =20+6 QV =8 QV (2) 93 Wi=24V-6V =18V (1) 9.4 OPTION 1 OPTION 2 Q=lAt R=L 18 =1 (6) _é 1=3A 2-7 I=3A (3) [11] TOTAL: 100 Copyright reserved