PHY-P1-March-Qp & Memo-2016-Gr10_hlayiso.com_.pdf

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Physical Sciences Down loaded from h layiso OM, Common Test NSC - Grade 10 INSTRUCTIONS AND INFORMATION 1. Write your name in the appropriate spaces on the ANSWER BOOK. 2. Answer ALL the questions in the ANSWER BOOK. 3. You may use a non-programmable calculator. 4, You may use appropriate mathematical instruments. 5. Number the answers correctly according to the numbering system used in this question paper. 6. You are advised to use the attached data sheets. 7, Round off your final numerical answers to a minimum of TWO decimal places 8. Give brief motivations, discussions, etcetera where required Copyright reserved Please. turn over

ownloaded fram hlayiso,co) NSC - Grade 10 Physical Sciences Dp QUESTION 1: MULTIPLE CHOICE 016 Common Test Four possible options are provided as answers. Choose the correct option by writing only the letter next to the question number (1.1 ~ 1.5). 4.4 If a note played on a piano has the same pitch as the one played on a guitar, the two notes will have the same: A Amplitude B Loudness C Quality D. Frequency 1.2 The time required for a wave to complete one full cycle is called A frequency B svelocity C period D wavelength 41.3 If the velocity of the wave remains constant, which one of the following increases when the wavelength decreases? A Frequency B Amplitude C Speed D Period Copyright reserved (2) (2) [6] Please turn over

Physical Sciences D own load e d from h lay i so 9 Me Common Test. QUESTION 2 NSC - Grade 10 The graph below, not drawn to scale, represents two waves, A and B, of the same wavelength but different amplitudes, crossing each other. r = -75.B £ a“ ‘S 5 0 a * y 3B / time (s) ° Q 2.1 Are the two waves transverse or longitudinal waves? 2.2 State the principle of superposition of waves. 23 The amplitude of wave B is two thirds (4) the amplitude of wave A. Calculate the amplitude of wave B. 2.4 Points P and Q are points on the waves, Label each point. 2.5 Draw the shape of the resulting wave as the two waves (A and B) meet. On your diagram, show the resulting amplitude. 2.6 What type of interference is this? 2.7 Wave A travels a distance of 0,6 m from point O to point Y in 0,015 s. Calculate: 2.7.1 the speed of this wave 2.7.2 the frequency of this wave. Copyright reserved (3) (2) [17] Please turn over

Physical Sciences pPownloaded from hlayiso.com NSC - Grade 10 QUESTION 3 March 2016 Common Test 3. Sipho and his friend Kadesh decide to do an investigation on the speed of sound. Sipho holds a drum 10 m from a wall while Kadesh stands some distance away holding a sound detector in his hand. When Sipho hits the drum ONCE the sound detector receives TWO sounds. Kadesh Sipho [—— | wall <---> 10m — i) L__. 3.1 Explain why the detector receives two sounds. (2) 3.2 The second sound reached the detector 0,15 s after Sipho hits the drum. Calculate the distance between Sipho and Kadesh. (4) 3.3 What will be the result if Sipho hits the drum in a vacuum? Give a reason for your answer. (2) [8] ( ) QUESTION 4 One of the types of electromagnetic radiation is ultraviolet light. Sunlight is a major source of ultraviolet light. 4.1 How is an electromagnetic wave created? (2) 4.2 Name three other types of electromagnetic waves that have a frequency lower than that of ultraviolet light. Arrange these waves in order of INCREASING frequency. (4) Copyright reserved Please turn over

Physical Sciences 4.3 44 45 4.6 4.7 4.8 NSC - Grade 10 The over exposure to the ultraviolet light could have harmful effects on humans. State ONE of these harmful effects on humans. Doctors use ultraviolet light to clean their surgical equipment. Explain how this is possible by referring to the properties of ultraviolet light. Downloaded from hlayiSO,GQIMN, conmon-test’ (1) Ultraviolet light of frequency 1,5 x 10'® Hz. was used to shine on a metal surface in order to remove electrons. Define a photon. Calculate the energy of a photon of this ultraviolet light. Calculate the wavelength of this light. The electromagnetic waves are transverse waves and sound waves are longitudinal waves. State two other differences between these waves. TOTAL MARKS: Copyright reserved (2) (2) (3) () (2) [19] Please turn over [50]

| | Physical Sciences P14 Downloaded from hlayiso.com March 2016 Common Test NSC - Grade 10 DATA FOR PHYSICAL SCIENCES GRADE 10 PAPER 1 (PHYSICS) GEGEWENS VIR FISIESE WETENSKAPPE GRAAD 10 VRAESTEL 1 (FISIKA) TABLE 1: PHYSICAL CONSTANTS/TABEL 1: FISIESE KONSTANTES NAME/NAAM SYMBOL/S/MBOOL VALUE/WAARDE TABLE 2: FORMULAE/TABEL 2: FORMULES MOTION/IBEWEGING Ve =Vitadt Ax = viAt+ Laat? or/of Ay = vAt+ tat? v7? = vj? +2adx or/of v,? =v, +2aAy AX = fa At otfof Ay = ca At FORCE/KRAG Fret = Ma p=mvy FAt=Ap=my, —mv, Fy =mg vt WORK, ENERGY AND POWERI/ARBEID, ENERGIE EN DRYWING W=FAxcos0 U = Ep =mgh K=E, =f mv? W= AK = AE, = Exe Ex pW P=Fv At WAVES, SOUND AND LIGHT/GOLWE, KLANK EN LIG v=fA offofv = vA tal orlof T=_ t v av eMy E=hf orlof E=hv orfof E=h= t vey, ° r rot sing = ™ mv a 1 1 hf=W, + mv? =hf, +ymv? Copyright reserved

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