22106511
Physics standard level
PaPer 2
Candidate session number
Monday 10 May 2010 (afternoon)
0
1 hour 15 minutes
0
INSTRUCTIONS TO CANDIDATES
•
•
•
•
•
Write your session number in the boxes above.
Do not open this examination paper until instructed to do so.
Section A: answer all of Section A in the spaces provided.
Section B: answer one question from Section B in the spaces provided.
At the end of the examination, indicate the numbers of the questions answered in the candidate box on your cover sheet.
19 pages
© International Baccalaureate Organization 2010
2210-6511
0119
– 2 –
Blank page
2210-6511
0219
M10/4/PHYSI/SP2/ENG/TZ1/XX+
– 3 –
M10/4/PHYSI/SP2/ENG/TZ1/XX+
SecTion a
Answer all the questions in the spaces provided. a1. This question is about electrical resistance.
The graph shows the variation with temperature T of the resistance R of an electrical component.
6000
5000
4000
R/ Ω
3000
2000
1000
0
(a)
250
300
T/K
350
400
A student hypothesizes that the resistance is inversely proportional to the temperature.
Use data from the graph to show whether the hypothesis is supported.
.......................................................................
.......................................................................
.......................................................................
.......................................................................
.......................................................................
[3]
.......................................................................
(This question continues on the following page)
Turn over
2210-6511
0319
– 4 –
M10/4/PHYSI/SP2/ENG/TZ1/XX+
(Question A1 continued)
(b) A second student suggests that the relationship is of the form
lg R =