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You can apply exactly the same principle to atomic-sized particles in order to measure their mass. Atoms and molecules can be deflected by magnetic fields – provided the atom or molecule is first turned into an ion.
For example, we usually measure the volume of a liquid sample with pipettes, burets, graduated cylinders, and volumetric flasks (Figure \(\PageIndex{1}\)), whereas we usually measure the mass of a solid or liquid substance with a balance (Figure \(\PageIndex{2}\)).
12 gru 2023 · The chapter introduces the concepts of space, time and mass and their connection with modern physics and how physics solve the problem to measure microscopic and macroscopic distances, times, and masses.
A measurement is a direct or indirect comparison of a certain quantity with an appropriate standard or unit of measurement. The value of a physical quantity is the quantitative expression of a particular physical quantity as the product of a number and a unit, the number being its numerical value.
It is important to remember these six fundamental (or 'base') units of measurement: metre (m) - unit of length. kilograms (kg) - unit of mass. second (s) - unit of time. ampere (A) - unit of ...
In this lab, the dimensions of various objects will be measured using a meter stick, vernier caliper, and micrometer. You will also get a chance to compare the British and metric system of units. With the use of an electric scale, the mass of some objects will be measured and from this, the density will be calculated.
Physics uses a lot of formulas and equation. A very powerful tool in working out physics problems with these formulas and equations is Dimensional Analysis. The left side of a formula or equation must have the same dimensions as the right side in terms of the fundamental quantities of mass, length and time. 5.
