Read the following extracts from the TWO short stories and answer the questions set on each. The number of marks allocated to each question serves as a guide to the expected length of your answer. NOTE: Answer the questions set on BOTH extracts, i.e. QUESTION 6.1 AND QUESTION 6.2. ‘MANHOOD’ 6.1 [Rob’s parents hear of … Read more
SECTION D: POETRY 6.1 Read the poem carefully and then answer the questions which follow. The number of marks allocated to each question serves as a guide to the expected length of your answer. 6.1.1 Describe the structure of this poem fully. (4) 6.1.2 Using your OWN words, state how the speaker feels about Spring. … Read more
Olive oil floats on water because its density is less than the density of water. However, the refractive index of olive oil is 1,47 while the refractive index of water is 1,33. 6.1 Define the term refractive index. (2) 6.2 Calculate the speed of light through olive oil. (3) 6.3 If light travels through water … Read more
The table below shows accurate values for the refractive indices (relative to air) ofsome optical media obtained during refraction experiments. The optical densities of themedia increase from water to diamond. 6.1 What important deduction about the relationship between a medium and itsrefractive index can be made from the information above?(2) 6.2 Define the term refraction.(2) … Read more
6.1 Determine the general solution for sin(x – 30°) = cos 2x 6.2 Consider the function f (x)= sin(x – 30°) and g(x) = cos 2x 6.2.1 Write down the period of g 6.2.2 State the range of f 6.2.3 On the grid provided in the ANSWER BOOK, draw a graph of f and g … Read more
Learners made a mini volcano in a science laboratory by adding sodium bicarbonate toethanoic acid. They added 100 mℓ of a 0,2 mol. dm-3 ethanoic acid solution to 10 g of NaHCO3 to start the reaction of the volcano.The balanced equation for this reaction is: CH3COOH(aq) + NaHCO3(s) → CH3COONa(aq) + H2O(l) + CO2(g) 6.1 … Read more
6.1 Sodium thiosulphate, Na2S2O3(s), reacts with 200 cm3 of a hydrochloric acid solution, HCℓ(aq), of concentration 0,2 mol·dm-3 according to the following balanced equation: Na2S2O3(s) + 2HCℓ(aq) → 2NaCℓ(aq) + S(s) + SO2(g) + H2O(ℓ) 6.1.1 Define the term concentration of a solution. (2) 6.1.2 Calculate the number of moles of HCℓ(aq) added to the … Read more
6.1 The decomposition of hydrogen peroxide in the presence of a catalyst at standard pressure and room temperature is given by the unbalanced chemical equation below. The oxygen gas is collected and the volume is recorded over a period of time.The reaction is completed at time t. The results are plotted on a graph of … Read more
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
The diagram below shows the graphs of 𝑓(𝑥) = -𝑥2 -𝑥 + 6 and 𝑔 (𝑥) = 𝑚𝑥 + 𝑐. A (-2 ; 4) is the point of intersections of the graphs. 6.1 Determine the 𝑥-interceptions 𝑓. (4) 6.2 Write down the equation of the axis of symmetry of 𝑓. (2) 6.3 Determine the range … Read more