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Master physics with our Physics Exam Prep Pack—a carefully curated collection of comprehensive study guides, practice problems, and detailed solutions designed to help you ace your physics exams. Covering core topics such as mechanics, thermodynamics, electromagnetism, optics, and quantum physics...

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  • September 16, 2024
  • 2
  • 2024/2025
  • Exam (elaborations)
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  • physics

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  • Phys131
  • Phys131
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PHYS131 – Chapter One – Measurement and Estimation


Tutorial 1




1) When multiplying several quantities, the number of significant digits in the result must
always be
A) larger than the number of significant digits in the most accurate of the quantities.
B) equal to the number of significant digits in the most accurate of the quantities.
C) equal to the average number of significant digits in the most and least accurate of the
quantities.
D) equal to the number of significant digits in the least accurate of the quantities.
E) smaller than the number of significant digits in the least accurate of the quantities.


2) When subtracting several quantities, the number of decimal places in the result must always be

A) larger than the number of decimal places in the most accurate of the quantities.

B) equal to the number of decimal places in the most accurate of the quantities.

C) equal to the average number of significant digits in the most and least accurate of the quantities.

D) equal to the number of decimal places in the least accurate of the quantities.

E) smaller than the number of decimal places in the least accurate of the quantities.



3) Select the list which contains only SI basic units.

A) liter, meter, second, watt

B) joule, kelvin, kilogram, watt

C) candela, kelvin, meter, second

D) joule, newton, second, watt

E) candela, joule, second, meter



4) How many significant figures are in 0.00054?

A) 2 B) 3 C) 4 D) 5 E) 6

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