Q1+2: An atom has a diameter of approximately 10-10 m, and a proton 10-15 m. |
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1. What is the approximate volume of a proton in metres cubed?
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2. What is the approximate ratio between the diameter of an atom like hydrogen to the diameter of the nucleus? | |||||||||||||||||
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3. Which of these answers contains only fundamental SI quantities?
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4. Which of these answers correctly identifies fundamental SI units and derived units?
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5. The watt is a derived unit. In SI fundamental units the watt is equivalent to..
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6. The ratio between a MJ and a pJ is:
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7. A moment (‘turning force’) has a unit of Nm. Which of these has the same base units as Nm?
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8. A student takes measurements for the acceleration of gravity on Earth, and obtains the following results:
g = 10.55, 10.57, 10.44, 10.51 ms-2 These results are ...
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9. A student is measuring the length of a set of pipes. Unfortunately his ruler has been damaged and starts at 0.2cm, which he fails to notice. This damage causes ...
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