Converting units of measurements

Q: Explain why measurements are never exact.

A: The act of the measuring the size of an object is known as measurement. It is numerical…

Q: write UNITS OF MEASUREMENT

A: The SI system, also called the metric system, which is used around the world.

Q: Which metric system unit is most appropriate for measuring the length of an insect such as a…

A: Which metric system unit is most appropriate for measuring the length of an insect such as a beetle?

Q: Why is it important to always include units when recording measurements?

A: It is important to always include units when recording measurements.

Q: The velocity of an object is the distance it travels per unit time. Suppose the velocity cm of a…

A: The velocity of the gliding bird=225 cm/s Distance travelled by the bird= 2.7 m First, convert…

Q: List the prefixes for multiples and fractions of basic units.

A: prefix Symbol Multiple factor yocto y 10-24 zepto z 10-21 atto a 10-18 femto f 10-15 pico…

Q: What kind of situation in which you might need to convert the units of a measurement ?

A: when describing size of macro units we use units like grams, kilograms.When describing size of micro…

Q: Write the two conversion factors that can be written forthe relationship between cm and in.

A: Units of measurement are defined as the fixed magnitude or quantity that can be defined and adopted…

Q: Explain how numbers and units of the metric system are used in science to describe properties?

A: How numbers and units of the metric system are used in science to describe properties has to be…

Q: in scientific notation

A:

Q: How many significant digits in 0.01850 – 103?

A:

Q: What is measuremen

A: Thermometer : It is a instrument used to measure the temperature . A glass thermometer works on the…

Q: what decimal power do the following abbreviations represent: (a)m, (b)k,(c)m,(d)n, and(e)u?

A: Please find the attached images for the answer

Q: Why must a measurement include both a number and a unit?

A: It is very important to specify the measurements with both a number and a unit. A measurement…

Q: Convert the following measurement.

A: density (d) : mass per unit volume is called density  d = m / V  units : g/cm3 (or) Kg/m3     1g =…

Q: How is the metric unit of L defined?

A: The SI unit is known as the International system of units known for its standard method for…

Q: Length is a derived quantity

A: Derived quantities are defined as those quantities that are being calculated from 2 or more values…

Q: Lavoisier developed a new theory of combustion that over-turned the phlogiston theory. What…

A: Lavoisier developed a new theory of combustion and disproved the phlogiston theory. Lavoisier…

Q: At what temperatures are the readings on the Fahrenheit and Celsius thermometers the same?

A: The intensity or the degree of heat that is experienced in a substance is called its temperature. A…

Q: Write a brief explanation about importance of measurements in chemistry.

A: Accurate, precise measurement is a fundamental component of good science. For this reason,…

Q: Arrange the measurements from longest length to shortest length.

A: 1 km > 1000 inch > 10 yard > 250 cm Explanation All the values are at first converted into…

Q: write UNCERTAINTY IN MEASUREMENT

A: Uncertainty as used here means the range of possible values within which the true value of the…

Q: O MEASUREMENT Multiplication and division of measurements

A: General Rules: For addition and subtraction, the same quantities or the quantities which can be…

Q: e) 248 cm to millimeters

A: We have to predict the value in millimeters.

Q: Why is it incorrect to say that the results of the measurement were accurate but not precise

A: While measuring any unit we work to meet the accuracy that means how close the measurements done to…

Q: Which weight would you expect for weighing on an ordinary bathroom scale

A: Ordinary bathroom scale has a range – 1 kg to 140 kg

Q: What is the measurement of water in the graduated cylinder (without units)?   How many significant…

A: Graduated cylinder is also known as measuring cylinder. It is a laboratory equipment which is used…

Q: Perform the calculations, then round the answer to the correct significant figures

A: The answer of following guestion given below

Q: The uncertainty in the measurement 0.0035 mg is

A: The mentioning of the number of significant figures is quite helpful in determining the uncertainty…

Q: Give a reason why the metric system is a more convenientsystem than the English system of…

A: The Metric System and English System both measure length, weight, and capacity. Every country has…

Q: What are the five derived units that is used to measure density?

A: The ratio of mass to the volume is known as density.

Q: Indicate what property each of the following measurements describe:

A: 1) 5.6 ns.     time     Explanation: ns = nano seconds.   Seconds is the measure of time.  2) 3.2…

Q: Measurements are said to be precise. Explain why?

A: The precision of a measurement is defined as the degree of closeness of the multiple set of readings…

Q: A woman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20…

A: Significant figures of a number printed in a positional notation are digits which make a…

Q: The density of a substance relative to the density of water.  It is one of the few measured values…

A: The density of any substance is mass by volume. Density=massvolume The unit of mass is Kg and the…

Q: 2.04 pm to meters Express your answer to three significant figures and include the appropriate…

A: For a number in scientific notation: N x 10x, all digits comprising N ARE significant.

Q: What are the basic four units of measurements?

A: These are the following basic units:

Q: Explain why standard units of measurement are particularly important to scientists.

A: HERE ARE SOME REASONS:

Q: Why is it incorrect to say a measurement is accurate but not precise

A:

Q: When a measuring scale is used properly to the limit of precision, the least significant digit…

A: Note - There is a word error in your question, i.e., least should be replaced by last. Taking it…

Q: What are the apparatus used to measure objects? What are they measuring (ex. Ruler measures the…

A: There are many apparatus used for measuring objects like for measuring length of an object,…

Q: Explain why it is important to use significant figures in a measurement. Give an example of…

A: Significant figures are used in measurements and calculations.

Q: What value of a measurement must be available if the accuracy of a measurement is to be determined

A: The physical dimensions of a substance are calculated by observing and taking down the measurements.…

Q: What are the Standard and American English Standard units for density?

A: Density: It can be defined as by saying that mass per unit volume.…

Q: Decide whether each proposed multiplication or division of measurements is possible. If it is…

A:

Q: Use the first menu to select the type of measurement represented by the unit. Use the second menu to…

A: Significant figure are used in calculation and to  measure and contribute more accuracy in…

Q: What are the key features of the metric system of measurement?

A:

Q: Perform the calculation and record the answer with the correct number of significant figures.

A: To calculate this problem  Firat we have to subtract the numerator and then devide this value with…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.