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Ibdp 2007 Physics Paper

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Ibdp 2007 Physics Paper


M07/4/PHYSI/SP3/ENG/TZ1/XX+

IB DIPLOMA PROGRAMME
PROGRAMME DU DIPLÔME DU BI
PROGRAMA DEL DIPLOMA DEL BI

22076512

physics sTANDARD level pApeR 3
Candidate session number

Thursday 3 May 2007 (morning)
0

1 hour

0

INSTRUCTIONS TO CANDIDATES
•
•
•
•

Write your session number in the boxes above.
Do not open this examination paper until instructed to do so.
Answer all of the questions from two of the Options in the spaces provided.
At the end of the examination, indicate the letters of the Options answered in the candidate box on your cover sheet.

2207-6512

33 pages
© IBO 2007

http://www.xtremepapers.net
0133

–2–

M07/4/PHYSI/SP3/ENG/TZ1/XX+

Option A — Mechanics extension
A1. This question is about gravitational field strength near the surface of a planet.

(a)

(i)

Define gravitational field strength.

[2]

..................................................................
..................................................................
(ii)

State why gravitational field strength at a point is numerically equal to the acceleration of free fall at that point.

[1]

..................................................................
..................................................................
..................................................................
(b)

A certain planet is a uniform sphere of mass M and radius R of 5.1 × 106 m.
(i)

State an expression, in terms of M and R, for the gravitational field strength at the surface of the planet. State the name of any other symbol you may use.
[1]
..................................................................
..................................................................
..................................................................

(ii)

A mountain on the surface of the planet has a height of 2000 m. Suggest why the value of the gravitational field strength at the base of the mountain and at
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