Fill up the table with the number of significant figures and write scientific no

Question

Fill up the table with the number of significant figures and write scientific notation and prefix values. 1 lb = 453.6 g = 16 Oz. A student named Abe makes measurements of length using a meter stick. Following is the data. Find the mean value. Find the standard deviation. Find the standard error Find the uncertainty. Find the percent error. A student has an experiment for the density of sold. The block has dimension of square of the following Vemier Caliper reading and the height has micrometer reading. A student has an experiment for unit and conversion and tries to obtain the density of cylindrical solid. The cylinder's dimensions of height and diameter are obtained by using Digital Vernier Caliper and the mass using the electronic scale. Following is the table of data which is obtained in the experiment. Fill the empty tabulated space with the proper value in the table What is the volume of this block in the unit of m^3? Find the density of this block in a unit of kg/m^3 In the experiment of density, a student is given five cubes of different sizes all made from the same material and asked to find the density of this material. Using a graduated cylinder containing water, volumes may be determined by water displacement. Each cube is places in the cylinder, the water level is recorded. Below tabulated data is measured through the experiment. Plot a straight-line graph of the appropriate variables mass vs volume. Find the slope. Find the density of this material Find the initial volume of water in the cylinder. Find the length of a side of the largest cube.

Explanation / Answer

Q1.

if zeros are to the left of a non-zero digit and after decimal point, they wont be counted for calculation of number of significant figures

so for 0.0024900 cm, number of significant figures=5

(zeros after a non-zero digit will count)

standard unit is m.

to make 3 significant figures, it has to be written as 0.00249.

scientific notation, 2.49*10^(-3).

prefix is m.

for 6.000 lb:

each of the zeros after decimal point are significant.

hence number of significant figures=4

standard unit is grams.

in grams, the value becomes 2721.6 grams

in 3 significant figures, it will be 2720 grams

scientific notation: 2.72*10^3 grams

so the table will be filled as below:

# of sig. fig standard unit make 3 s.f. S.N prefix 0.0024900 5 m 0.00249 2.49*10^(-3) cm 6.000 lb 4 grams 2720 grams 2.72*10^3 grams

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