physics 121- chapters 1-3 Question and
answers correctly solved 2025
Nature of Science sequence - correct answer ✔Experiment- observation-
theory (idea)-prediction- refine
theory vs law vs principle - correct answer ✔theory- testable and detailed
law-explanation of how nature behaves under certain circumstances
principle- narrower phenomena of a law
percent uncertainty - correct answer ✔(always smallest measurement of
device ex: ruler-mm)
Δx/ x * 100%
significant figures when adding/subtracting - correct answer ✔least decimal
place
significant figures when multiplying/diving - correct answer ✔smallest
number of digits
vector (4) - correct answer ✔quality that has both magnitude and direction
-displacement, velocity, acceleration and force
scalar (7) - correct answer ✔constant
volume
speed
mass
answers correctly solved 2025
Nature of Science sequence - correct answer ✔Experiment- observation-
theory (idea)-prediction- refine
theory vs law vs principle - correct answer ✔theory- testable and detailed
law-explanation of how nature behaves under certain circumstances
principle- narrower phenomena of a law
percent uncertainty - correct answer ✔(always smallest measurement of
device ex: ruler-mm)
Δx/ x * 100%
significant figures when adding/subtracting - correct answer ✔least decimal
place
significant figures when multiplying/diving - correct answer ✔smallest
number of digits
vector (4) - correct answer ✔quality that has both magnitude and direction
-displacement, velocity, acceleration and force
scalar (7) - correct answer ✔constant
volume
speed
mass
