REVISION SCIENCE TO EXCEL IN A-LEVEL PHYSICS A-levelPHYSICS7408/3BC Paper 3
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Course
PHYS 123
Institution
University Of Leeds (UoL)
REVISION
SCIENCE TO
EXCEL
IN
A-LEVEL PHYSICS
A-levelPHYSICS7408/3BC Paper 3
A gymnast dismounts from an exercise in which he swings on a high bar. Thegymnast rotates in the air before landing.
REVISION
SCIENCE TO
EXCEL
IN
A-LEVEL PHYSICS
A-levelPHYSICS7408/3BC Paper 3
A-levelPHYSICS7408/3BC Paper 3
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CORRECTLY ANSWERED
MARKING SCHEME
WITH STEP BY STEP CALCULATIONS FOR
MATHEMATICAL QUESTIONS
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, Please write clearly in block capitals.
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I declare this is my own work.
A-level
PHYSICS
Paper 3
Section B Engineering physics
Time allowed: The total time for
both sections of this paper is
Materials
For this paper you must have: 2 hours. You are advised to
• a pencil and a ruler spend approximately
• a scientific calculator 50 minutes on this section.
• a Data and Formulae Booklet
• a protractor.
For Examiner’s Use
Instructions Question Mark
• Use black ink or black ball-point pen.
1
• Fill in the boxes at the top of this page.
• Answer all questions. 2
• You must answer the questions in the spaces provided. Do not write 3
outside the box around each page or on blank pages. 4
• 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). 5
• Do all rough work in this book. Cross through any work you do not want TOTAL
to be marked.
• Show all your working.
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 35.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*JUN2174083BC01*
IB/M/Jun21/E8 7408/3BC
, 2
Do not write
outside the
Section B box
Answer all questions in this section.
0 1 A gymnast dismounts from an exercise in which he swings on a high bar. The
gymnast rotates in the air before landing.
Figure 1 shows the gymnast in three positions during the dismount.
Figure 1
The arrows show the direction of rotation of the gymnast.
In position 1 the gymnast has just let go of the bar. His body is fully extended.
Position 2 shows the rotating gymnast a short time later. His knees have been
brought close to his chest into a ‘tuck’.
Position 3 is at the end of the dismount as the gymnast lands on the mat. His body is
once again fully extended.
*02*
IB/M/Jun21/7408/3BC
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