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So that we understand the value of the measurement number. A value of 5 does not tell you if it refering to distance, volume, or mass. If it is a distance whether it is about 5 feet, 5 inches, 5 miles, or 5 centimetes, 5 meters, 5 kilometers or anythinge else.
A measurement includes both a number and a unit to provide a quantitative value and context for what is being measured. The number indicates the amount or quantity being measured, while the unit specifies the scale or magnitude of the measurement. Without both components, the measurement lacks clarity and may be misunderstood or misinterpreted.
We need to know the "unit of measure" ( ie metre, gram etc) and the number of units.
ie 10 (No of Units) Metre (Unit of measure)
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All measurements must consist of?
A unit of measurement, a number indicating the quantity, and a scale or reference to provide context.
What measurement must you make to find density of a sample of matter?
Two measurements are needed - you must find its mass and its volume. Density is mass divided by volume.
If there is a difference between a substance's atomic number and its atomic mass and which measure must be the larger number?
The atomic number represents the number of protons in an atom, while the atomic mass represents the sum of protons and neutrons. Generally, the atomic mass is larger than the atomic number for most elements since it includes both protons and neutrons.
How can the number of significant figures in a measurement be increased without changing the measuring device?
To increase the number of significant figures in a measurement, you can estimate between the smallest markings on the measuring device. For example, if a device measures to the nearest 0.1 unit, you can estimate to the nearest 0.01 unit to increase the number of significant figures.
What conditions are necessary when measuring BMR?
When measuring Basal Metabolic Rate (BMR), it's important to ensure the individual is in a fasting state, both physically and mentally at rest, and has not engaged in any strenuous physical activity prior to the measurement. Additionally, the environment should be thermoneutral to prevent any external factors from influencing the metabolic rate measurement.
A measurement must include both a number and what?
The unit of measurement
A measurement must include both a number and a(an)?
the unit of mesurement
A measurement must include both a number and a?
the unit of mesurement
A vector quantity must include both magnitude and direction. Which measurement is a vector quantity?
Velocity is a vector quantity.
What must the axes on a graph include?
Units of measurement, Titles.
What must the scale of a graph include?
Intervals and units of measurement
What two things must a measurement have?
a number and a unit
All measurements must consist of?
A unit of measurement, a number indicating the quantity, and a scale or reference to provide context.
When a scientist is making a measurement what information must be included with the number?
The measurement units and the degree of precision (significant figures or margin of error).
A neutral with 15 protons must include what else?
15 Electrons. A charge-less (neutral) atom must have an equal number of both protons and electrons, otherwise it becomes an ion.
Why should probability always include a number?
Probability is a numerical value and there must bea number, not just include one.
Why must you include both the grams and centimeters cubed in the answer of a density problem?
Density is mass/Volume so you must include the units of measurement. For mass, these may be grams or kilograms (or, in countries still using the Imperial system, pounds!). Similarly there are measures for volume. If these were not given it would not be possible to tell whether the density was given in grams per cm3 or pounds per cubic foot.
