Velocity and Ratio A. B.
1 hour
IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI
N07/4/PHYSI/HPM/ENG/TZ0/XX+
88076501
Physics higher level PaPer 1 Thursday 8 November 2007 (afternoon)
INSTRUCTIONS TO CANDIDATES
• Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question, choose the answer you consider to be the best and indicate your choice on the
answer sheet provided.
8807-6501
21 pages © IBO 2007
–2– 1. Which of the following contains only fundamental SI units? A. B. C. D. ampere volt mole kilogram newton second ampere metre
N07/4/PHYSI/HPM/ENG/TZ0/XX+
second kelvin kilogram tesla
2.
The mass of a body is measured with an uncertainty of 2.0 % and its volume with an uncertainty of 10 %. What is the uncertainty in the density of the body? A. B. C. D. 0.2 % 5.0 % 12 % 20 %
3.
The molar mass of water is 18 g. The approximate number of water molecules in a glass of water is A. B. C. D. 10 22 . 10 25 . 10 28 . 10 31 .
8807-6501
–3– 4.
N07/4/PHYSI/HPM/ENG/TZ0/XX+
Both random and systematic errors are present in the measurement of a particular quantity. What changes, if any, would repeated measurements of this quantity have on the random and systematic errors? random A. B. C. D. reduced reduced unchanged unchanged systematic reduced unchanged reduced unchanged
8807-6501
Turn over
–4– 5.
N07/4/PHYSI/HPM/ENG/TZ0/XX+
A fire-fighting helicopter is flying at constant speed along a horizontal straight-line carrying a bucket of water as shown in the diagram below. The rope to the bucket makes a fixed angle with the vertical.
constant speed
rope
bucket of water Which of the following diagrams is the correct free body diagram of the forces acting on the bucket? A. B.
C.
D.
8807-6501
–5– 6. Sand falls vertically on a conveyor belt at a rate of m kg s–1 .
N07/4/PHYSI/HPM/ENG/TZ0/XX+
v
sand belt
In
1 hour
IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI
N07/4/PHYSI/HPM/ENG/TZ0/XX+
88076501
Physics higher level PaPer 1 Thursday 8 November 2007 (afternoon)
INSTRUCTIONS TO CANDIDATES
• Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question, choose the answer you consider to be the best and indicate your choice on the
answer sheet provided.
8807-6501
21 pages © IBO 2007
–2– 1. Which of the following contains only fundamental SI units? A. B. C. D. ampere volt mole kilogram newton second ampere metre
N07/4/PHYSI/HPM/ENG/TZ0/XX+
second kelvin kilogram tesla
2.
The mass of a body is measured with an uncertainty of 2.0 % and its volume with an uncertainty of 10 %. What is the uncertainty in the density of the body? A. B. C. D. 0.2 % 5.0 % 12 % 20 %
3.
The molar mass of water is 18 g. The approximate number of water molecules in a glass of water is A. B. C. D. 10 22 . 10 25 . 10 28 . 10 31 .
8807-6501
–3– 4.
N07/4/PHYSI/HPM/ENG/TZ0/XX+
Both random and systematic errors are present in the measurement of a particular quantity. What changes, if any, would repeated measurements of this quantity have on the random and systematic errors? random A. B. C. D. reduced reduced unchanged unchanged systematic reduced unchanged reduced unchanged
8807-6501
Turn over
–4– 5.
N07/4/PHYSI/HPM/ENG/TZ0/XX+
A fire-fighting helicopter is flying at constant speed along a horizontal straight-line carrying a bucket of water as shown in the diagram below. The rope to the bucket makes a fixed angle with the vertical.
constant speed
rope
bucket of water Which of the following diagrams is the correct free body diagram of the forces acting on the bucket? A. B.
C.
D.
8807-6501
–5– 6. Sand falls vertically on a conveyor belt at a rate of m kg s–1 .
N07/4/PHYSI/HPM/ENG/TZ0/XX+
v
sand belt
In