The newest 20 of 73 written questions. Open one to see it on the real paper.
State the precision of the ruler in Fig. 3.2.
See it on the paper →Calculate the average time t av for the ball to roll down the track. Record your answer here and in Table 3.1 on page 10. t av = s
See it on the paper →On the grid provided, plot a graph of h on the x-axis against average speed on the y-axis. You do not have to start your graph at (0, 0). Include the value of h that you measured and the average speed that you calculated for d = 100 cm in your graph. Draw the line of best fit through your points. average speed cm / s h...
See it on the paper →State the name of the apparatus that the student uses to measure the volume of the solutions. (a) (i)
See it on the paper →State two variables that the student should keep constant to ensure that the investigation is a fair test. variable variable
See it on the paper →Complete Table 1.1 by writing appropriate units in the header and entering the student’s results shown in Fig. 1.1. Table 1.1 temperature of the time taken for milk to water-bath / reach pH 5.0 /
See it on the paper →Define speed. (ii) In 1998, an athlete ran 1500 m in 3 minutes and 26 seconds. Calculate the average speed of the athlete. Give your answer to 2 significant figures and state the unit. average speed = unit
See it on the paper →Calculate the total distance the team swims. total distance = m
See it on the paper →Use your answer from (b)(i) to determine the average speed of the swimming team. average speed = m / s Give your answer to 2 significant figures.
See it on the paper →Fig. 4.1 shows information about the effect of continued smoking of cigarettes on the risk of dying from lung cancer. 20 continued smoking 15 percentage risk of dying from 10 lung cancer stopped aged 50 5 stopped aged 30 never smoked 0 45 55 65 75 age / years percentage risk = Determine the percentage risk of a 75-year...
See it on the paper →A student makes conclusions from the information in the graph in Fig. 4.1. Tick (✓) three sentences in Table 4.1 that are correct conclusions for the information in the graph in Fig. 4.1. Table 4.1 conclusion made by student tick if correct People who have never smoked cigarettes do not die from lung cancer. Smoking ci...
See it on the paper →Calculate the average diameter length. Show your working and give the unit. average diameter = unit
See it on the paper →Measure and record h 1 and h 2 . h 1 = mm h = mm (i)
See it on the paper →Calculate the percentage difference, H in your values of h 1 and h 2 . Use the equation: H = h 1 – h 2 × 100 h 1 H = %
See it on the paper →The arrangement of the apparatus in Fig. 3.4 has an error that means that h 2 is not a valid measurement of the deformation of the paper cylinder produced by the load. Identify the error by comparing Fig. 3.3 with Fig 3.4 and describe the improvement you would make to produce a valid measurement of h 2 . error improvem...
See it on the paper →The student corrects the error and calculates a new value of H. The student also calculates another value of H that is suggested by theory. The student compares the two values of H. State how the two values of H are used to evaluate whether they are the same within the limits of experimental accuracy.
See it on the paper →State the name of the apparatus the student uses to measure the mass of a carrot cylinder.
See it on the paper →Suggest how the student can improve the accuracy of the measurements.
See it on the paper →Fig. 1.2 shows part of the scale of the thermometer used to measure the initial temperature of the starch solution. °C 19 Fig. 1.2 Record the temperature shown on the thermometer.
See it on the paper →The student’s results for 25.0 °C are shown in Fig. 1.3. iodine solution with no starch present 1 2 3 4 5 6 7 8 9 10 11 12 25.0 °C Fig. 1.3 The student’s results for the higher temperatures of the water bath are shown in Fig. 1.4. 1 2 3 1 2 3 1 2 3 4 5 6 4 5 6 4 5 6 7 8 9 7 8 9 7 8 9 10 11 12 10 11 12 10 11 12 35.0 °C...
See it on the paper →Most candidates knew that the apparatus in Fig. 1.2 was a measuring cylinder.
— Examiner report, October/November 2023, 5129/31 Q1(b)(i) (Cambridge)
Many candidates did not realise that there were no units for temperature or that seconds had been repeated throughout the table. Candidates should know that table headings always need an appropriate unit and that there should be no units in the body of the table. Many described the fact that there were two sets of data recorded at 60 seconds and two other sets recorded at 90 seconds.
— Examiner report, October/November 2023, 5129/32 Q1(b)(i) (Cambridge)
Candidates found this question accessible. Many knew the function of the zero and the unit buttons.
— Examiner report, May/June 2023, 5129/31 Q1(a) (Cambridge)
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