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Physics paper 3 alevel 2019 edexcel
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Question paper 3 2019
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Please check the examination details below before entering your candidate informationCandidate surname Other names
Centre Number Candidate Number
Pearson Edexcel
Level 3 GCE
Monday 3 June 2019
Afternoon (Time: 2 hours 30 minutes) Paper Reference 9PH0/03
Physics
Advanced
Paper 3: General and Practical Principles in Physics
You must have: Total Marks
Ruler
Instructions
• Use black ink or ball-point pen.
• centre
Fill in the boxes at the top of this page with your name,
number and candidate number.
• Answer all questions.
• Answer the questions in the spaces provided
– there may be more space than you need.
Information
• The total mark for this paper is 120.
• The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• You may use a scientific calculator.
• to structure your
In questions marked with an asterisk (*), marks will be awarded for your ability
answer logically, showing how the points that you make are
related or follow on from each other where appropriate.
Advice
• Read each question carefully before you start to answer it.
• Checkanswer
Try to every question.
• You areyour answers if you have time at the end.
• appropriate.
advised to show your working in calculations, including units where
Turn over
P58359A
©2019 Pearson Education Ltd.
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2
, Answer ALL questions in the spaces provided.
1 An engineer was checking the dimensions of a steel tube. The tube had a length of about
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45 mm and an external diameter of about 15 mm as shown.
15 mm
45 mm
She used a digital micrometer to measure the diameter of the tube. Before taking the
reading she closed the jaws of the micrometer to check for a zero error.
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(a) State the type of error she avoided by doing this.
(1)
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(b) Describe the procedure she should follow to determine an accurate value for the
external diameter of the tube.
(3)
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. . . . . . . . . . . .................................................... ....................................... . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(c) The engineer determined the length of the tube using the micrometer. The reading on
the micrometer scale was 45.043 mm. She recorded the reading as 45.0 mm.
State why recording a reading of 45.043 mm could not be justified.
(1)
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(Total for Question 1 = 5 marks)
3
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, 2 A student determined the specific heat capacity of aluminium.
She used an electrical heater to heat an aluminium block and measured the temperature
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of the block with a digital thermometer.
(a) She connected the electrical heater into a circuit and took measurements to determine
the power of the heater.
Draw a circuit diagram of a suitable circuit.
(2)
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(b) The student monitored the temperature ș of the aluminium block over the time t for
which the heater was switched on.
Her results are plotted on the graph.
40
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35
30
ș / °C
25
20
15
10
0 50 100 150 200 250 300 350 400 450 500 550
t/s
4
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