CAIE A Level 9702

Physics 2023 · May/June

18 Questions Q&A Available

Questions & Model Answers 18 Qs

Short Answer 2 marks

In this experiment, you will investigate the motion of a pendulum. You have been provided with a cylinder and a pendulum. cylinder string bob adhesive putty The distance between P and the centre of the bob is L. Adjust the adhesive putty and string so that L is approximately 45 cm. L = [1] clamp boss bench standbob cylinder T =

Q1(c)

Short Answer 3 marks

Change L by attaching a different point on the string to the cylinder and determine T. Repeat until you have six sets of values of L and T. and L in your table. [9] on the y-axis against L on the x-axis.

Q1(ii)

Short Answer 1 mark

Draw the straight line of best fit.

Q1(iii)

Short Answer 2 marks

Determine the gradient and y-intercept of this line. gradient = y-intercept =

Q1(e)

Short Answer 1 mark

It is suggested that the quantities T and L are related by the equation = EL+ F where E and F are constants. Using your answers in (d)(iii), determine the values of E and F. Give appropriate units. E = F = [2] [Total: 20] You may not need to use all of the materials provided.

Short Answer 1 mark

In this experiment, you will investigate the equilibrium of a card. You have been provided with a card.

Q2(a)

Short Answer 1 mark

The card has one edge of length h and another edge of length x, as shown in Fig. 2.1. card

Q2(i)

Short Answer 1 mark

Measure and record h and x. h = cm x = cm

Q2(ii)

MCQ 1 mark

Calculate the area A of the card, where A = hx + A = cm

= hx +

= ...................................................cm

Q2(iii)

Short Answer 2 marks

Justify the number of significant figures that you have given for your value of A. hole nail bench stand boss The three lines cross at distances c and d from the two edges of the card shown in Fig. 2.4. hole line Measure and record c and d. c = cm d = cm

Q2(ii)

Short Answer 1 mark

Estimate the percentage uncertainty in your value of c. Show your working. percentage uncertainty = % [1] x = cm

Q2(ii)

Short Answer 1 mark

Repeat

Q2(ii)(i)

Short Answer 1 mark

. A = cm c = cm d = cm

Q2(d)

Short Answer 1 mark

It is suggested that the relationship between c, A, h and x is cA = where k is a constant. Using your data, calculate two values of k. first value of k = second value of k =

Q2(e)

Short Answer 1 mark

It is suggested that the percentage uncertainty in the values of k is 5%. Using this uncertainty, explain whether your results support the relationship in

Q2(e)(d)

Short Answer 1 mark

. Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series. Local Examinations Syndicate (UCLES), which is a department of the University of Cambridge.

Q2(f)

Structured 4 marks

(i) Describe four sources of uncertainty or limitations of the procedure for this experiment. For any uncertainties in measurement that you describe, you should state the quantity being measured and a reason for the uncertainty. 1 2 3 4

Q2(ii)

Short Answer 1 mark

Describe four improvements that could be made to this experiment. You may suggest the use of other apparatus or different procedures. 1 2 3 4 [4] [Total: 20]

Paper Details

Board	CAIE
Level	A Level
Subject	Physics
Code	`9702`
Year	2023
Session	May/June
Q&A	18 questions

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