& Mark Scheme (Merged) June 2025 [VERIFIED]
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GCSE
PHYSICS
Higher Tier Paper 1
H
Thursday 22 May 2025 Morning Time allowed: 1 hour 45 minutes
Materials For Examiner’s Use
For this paper you must have:
Question Mark
a ruler
a scientific calculator 1
the Physics Equations Sheet (enclosed). 2
3
Instructions
Use black ink or black ball-point pen. Pencil should only be used for drawing. 4
Fill in the boxes at the top of this page. 5
Answer all questions in the spaces provided. 6
Do not write outside the box around each page or on blank pages.
7
Do all rough work in this book. Cross through any work you do not want to
be marked. 8
If you need extra space for your answer(s), use the lined pages at the end of 9
this book. Write the question number against your answer(s).
10
In all calculations, show clearly how you work out your answer.
TOTAL
Information
The maximum mark for this paper is 100.
The marks for questions are shown in brackets.
You are expected to use a calculator where appropriate.
You are reminded of the need for good English and clear presentation in
your answers.
IB/G/Jun25/G4007/E8 8463/1H
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 Tides and wind are two renewable energy resources.
0 1 . 1 Describe the difference between renewable energy resources and non-renewable
energy resources.
[2 marks]
Figure 1 shows a new design of tidal turbine to generate electricity using
the tides.
Figure 1
IB/G/Jun25/8463/1H
, 3
Do not write
outside the
Use the Physics Equations Sheet to answer questions 01.2 and 01.3. box
0 1 . 2 Write down the equation which links density (ρ), mass (m) and volume (V).
[1 mark]
0 1 . 3 The mass of seawater passing through the tidal turbine each second is 824 000 kg.
The density of seawater is 1030 kg/m3.
Calculate the volume of seawater passing through the tidal turbine each second.
[3 marks]
Volume = ______________________ m3
Question 1 continues on the next page
Turn over ►
IB/G/Jun25/8463/1H
, 4
Do not write
outside the
The speed of the tide or the speed of the wind past a turbine is called the box
‘flow speed’.
Figure 2 shows how the power output of a tidal turbine compares with a wind turbine
for different flow speeds.
Figure 2
0 1 . 4 As flow speed increases, power output increases.
Give two other conclusions that can be made using information from Figure 2.
[2 marks]
1
2
IB/G/Jun25/8463/1H