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Question 1
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 1.11 E. 1.1 Four forces act on a point, as indicated in the diagram. The magnitudes … Read more
Question 7
7.1 A company bought machinery costing R80 000. Using the reduced balance method the machinery had a book value of R20 000 after 5 years. Calculate the rate of depreciation. (3) 7.2 Calculate the effective interest rate if interest is compounded at 5% p.a., compounded quarterly (3) 7.3 Sipho invested R30 000 for 6 years. … Read more
Question 10
10.1 The circuit below consists of a 6 Ω and 15 Ω resistor connected in parallel and an unknown resistor R, in series. An ammeter, a high-resistance voltmeter, a closed switch and battery are connected, as shown. The resistance of the battery and wires can be ignored. The total power dissipated in the parallel part … Read more
Question 9
An induction coil of area 48,6 cm2 and 200 windings is rotated clockwise in a constant magnetic field of magnitude 2,4 T. Refer to the diagram below. The graph below shows how the induced emf varies with the inverse of time. 9.1 State Faraday’s law in words. (2) 9.2 Use the information in the graph … Read more
Question 8
Two IDENTICAL point charges, X and Y, are placed 2 mm apart. Point P is 3 mm to the right of charge Y. The net electric field at point P is 5,44 × 106 N∙C-1 to the left. 8.1 Define the term electric field at a point. (2) 8.2 Are the charges NEGATIVE or POSITIVE? … Read more
Question 7
An experiment is set up, as shown below, to investigate the effect of slit width on the degree of diffraction. Distance y on the diagram represents the distance between the screen and the single slit. Distance x on the diagram represents the width of the central bright band. 7.1 Write down an investigative question for … Read more
Question 6
Experiments are performed to compare the refractive indices of different materials. In one experiment a light ray passes from air to material A and the angles of incidence and refraction are measured. The refractive index for air is 1. The graph below was drawn using the results of material A. 6.1 Define the term angle of … Read more
Question 5
The acceleration due to gravity on planet X is 2,7 m∙s-2. The radius of this planet is a third (â…“) of the radius of Earth. 5.1 Explain the difference between weight and mass. (2) 5.2 Calculate the mass of planet X. (4) 5.3 Determine the factor by which the weight of an object on planet … Read more