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A Level Physics Paper 1 November 2020 Updated Question Paper/Real Exam

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One strong interaction that occurs when two high-energy protons collide is p + p → p + π + + π − + X . Determine the lepton number, strangeness and charge of particle X. [2 marks] lepton number = strangeness = charge = . Identify particle X. [1 mark] 0 1 0 1 0 1 lOMoAR cPSD| 3 *03* . 3 A possible decay of a negative pion is π − → e − + Y What is particle Y? Tick (�) one box. [1 mark] Do not write outside the box ν�e ve π 0 1 0 Question 1 continues on the next page Turn over ► 0 1 n lOMoAR cPSD| 4 *04* . 4 Some subatomic particles are classified as hadrons. There are two classes of hadrons. Do not write outside the box Discuss the nature of hadrons. Your answer should include:  the identifying properties of hadrons  the structure of a hadron in each class  a discussion of the stability of free hadrons. [6 marks] 0 1 lOMoAR cPSD| 5 *05* I Do not write outside the box Turn over for the next question Turn over ► lOMoAR cPSD| 6 *06* A spacecraft entering the atmosphere of Mars must decelerate to land undamaged on the surface. Figure 1 . Figure 1 shows the spacecraft of total mass 610 kg entering the atmosphere at a speed of 5.5 km s−1 . Do not write outside the box Calculate the kinetic energy of the spacecraft as it enters the atmosphere. Give your answer to an appropriate number of significant figures. [3 marks] kinetic energy = J 0 2 . 2 A parachute opens during the spacecraft’s descent through the atmosphere. Figure 2 shows the parachute–spacecraft system, with the open parachute displacing the atmospheric gas. This causes the system to decelerate. Figure 2 Explain, with reference to Newton’s laws of motion, why displacing the atmospheric gas causes a force on the system and why this force causes the system to decelerate. Do not w

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lOMoAR cPSD| 22830792




AQA AS Level NOV2020 Physics Paper 1 QP


AQA Chemistry (Newcastle University)




Studocu is not sponsored or endorsed by any college or university
Downloaded by charity nimo ()

, lOMoAR cPSD| 22830792




Please write clearly in block capitals.

Centre number Candidate number


Surname

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Candidate signature
I declare this is my own work.



AS
PHYSICS
Paper 1


Tuesday 12 May 2020 Morning Time allowed: 1 hour 30 minutes
Materials
For Examiner’s Use
For this paper you must have:
 a pencil and a ruler Question Mark
 a scientific calculator
1
 a Data and Formulae Booklet.
2
Instructions 3
 Use black ink or black ball-point pen. 4
 Fill in the boxes at the top of this page.
5
 Answer all questions.
 You must answer the questions in the spaces provided. Do not write 6
outside the box around each page or on blank pages. TOTAL
 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.




*jun207407101* 7407/1
IB/M/Jun20/E8
Downloaded by charity nimo ()

, A Level Physics Paper 1 November 2020 Updated
Question Paper/Real Exam


Do not write
outside the
Answer all questions in the spaces provided. box




0 1 One strong interaction that occurs when two high-energy protons collide is


p + p → p + π+ + π − + X


0 1 . 1 Determine the lepton number, strangeness and charge of particle X.
[2 marks]




lepton number =

strangeness =

charge =


0 1 . 2 Identify particle X.
[1 mark]




*02*
IB/M/Jun20/7407/1
Downloaded by charity nimo ()
$11.36
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