*JUN217407201*
IB/M/Jun21/E7 7407/2
For Examiner’s Use
Question Mark
1
2
3
4
5
6–35
TOTAL
Materials
For this paper you must have:
• a pencil and a ruler
• a scientific calculator
• a Data and Formulae Booklet
• a protractor.
Instructions
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page.
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write
outside the box around each page or on blank pages.
• If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s).
• Do all rough work in this book. Cross through any work you do not want
to be marked.
• Show all your working.
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 70.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
PHYSICS
Paper 2
Time allowed: 1 hour 30 minutes
You are advised to spend about
35 minutes on Section C
Your text here 1
1 / 3
2
*02*
IB/M/Jun21/7407/2
Do not write
outside the Section A box
Answer all questions in this section.
0 1 A student investigates stationary waves using microwaves.
Figure 1 shows a metre ruler fixed to a bench. The student places a microwave
transmitter T at one end of the ruler and a vertical metal reflector R at the other end.
R is at a right angle to the ruler.
Figure 1
The student places a microwave detector D approximately one-third of the distance
from T to R. When T is switched off, the microammeter connected to D reads zero.
When T is switched on, stationary waves are produced between T and R, and the
microammeter registers a current. When the student moves D along the ruler, the
size of the current changes between maximum and minimum values.
2 / 3
3
*03*
Turn over ►
IB/M/Jun21/7407/2
Do not write
outside the
box The student measures the current at different positions of D along the ruler to identify
a position P of the minimum current.
Figure 2 is a plot of the measurements taken near P.
Figure 2
0 1 . 1 Draw a line of best fit for these data.
[2 marks]
0 1 . 2 State a value for the position of P.
[1 mark]
position of P = cm
Question 1 continues on the next page
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Version | 2021 |
Category | AQA Questions and Marking Scheme |
Included files | |
Authors | qwivy.com |
Pages | 40 |
Language | English |
Comments | 1 |
Sales | 1 |
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integratenice 11 months ago
does this include the mark scheme?