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Official summer 2024 OCR GCE Physics A H556/03: Unified physics A Level Merged Question Paper + Mark Scheme $7.99   Add to cart

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Official summer 2024 OCR GCE Physics A H556/03: Unified physics A Level Merged Question Paper + Mark Scheme

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Official summer 2024 OCR GCE Physics A H556/03: Unified physics A Level Merged Question Paper + Mark Scheme

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  • August 29, 2024
  • 47
  • 2024/2025
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  • Official summer 2024 OCR GCE A/AS LEVEL
  • Official summer 2024 OCR GCE A/AS LEVEL
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Official summer 2024

OCR
GCE
Physics A
H556/03: Unified physics
A Level


Merged Question Paper + Mark Scheme




Ace your Mocks!!!

, Oxford Cambridge and RSA

Monday 17 June 2024 – Morning
A Level Physics A
H556/03 Unified physics
Time allowed: 1 hour 30 minutes

You must have:
* 1 3 5 9 7 9 8 4 8 7 *




• the Data, Formulae and Relationships Booklet
You can use:
• a scientific or graphical calculator
• a ruler (cm/mm)




* H 5 5 6 0 3 *




Please write clearly in black ink. Do not write in the barcodes.

Centre number Candidate number


First name(s)

Last name


INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined page at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answers should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.

INFORMATION
• The total mark for this paper is 70.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 20 pages.

ADVICE
• Read each question carefully before you start your answer.




© OCR 2024 [601/4743/X] OCR is an exempt Charity
DC (CJ/SG) 340059/5 Turn over

, 2
Answer all the questions.

1 A flute is a musical instrument made from a long tube that is open at both ends.

A stationary sound wave in the tube produces a musical note.

The lowest frequency note that a standard flute produces in air is 262 Hz.

The speed of sound in air at a temperature of 20 °C is 340 m s–1.

(a) Show that a standard flute has an approximate length of 0.65 m.




[3]

(b) In an ideal gas, the speed v of sound is given by
⎛γRT⎞1/2
v=⎝ M ⎠

where

γ is a dimensionless constant that depends on the gas

R is the molar gas constant

T is the absolute temperature

M is the molar mass of the gas.

The table below shows values of γ and M for both air and helium.

Gas γ M / g mol–1

Air 1.40 29.0

Helium 1.67 4.00




© OCR 2024

, 3
(i) The kinetic model of an ideal gas assumes that there are a large number of particles in rapid,
random motion.

State two further assumptions for the kinetic model of an ideal gas.

1 .......................................................................................................................................................

..........................................................................................................................................................

2 .......................................................................................................................................................

.................................................................................................................................................... [2]

(ii) A standard flute is placed inside a sealed chamber.

The chamber is filled with helium at a temperature of –10 °C.

Calculate the lowest frequency that the flute could produce inside the chamber.




frequency = ................................................... Hz [4]




© OCR 2024 Turn over

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