Significant Figures in Multiplication and Division Flashcards
Five significant figures will be present in the volume of a sphere if the radius of the sphere is 3.016 m. (Value of pi is 3.14)
True or False?
False
Perform the following calculation and give the answer with the correct number of significant figures: 10.888×44.
480
Calculate 152.8/2.0 with the correct number of significant figures.
76
Calculate the following using proper number of significant figures:
0.0702÷1.35
0.0520
A sample of nickel weighs 7.5425 g and has a density of 8.8 g/cm3. What is the volume with the correct number of significant figures?
0.86cm3
A is 3600 m away from B. Jack spent 720.0 s running from A to B. What is Jack’s average speed? (Average speed = Distance/Time)
5
Assume an object A with mass of 66.789 g and a volume of 10.1 mL. What is its density?
6.61
Consider a block G with mass of 49.231 g and a volume of 23.8 mL. What is its density? (Density = mass ÷ volume)
___ g/mL
2.07
The dimensions of a box are 4.5 cm wide by 5.750 cm long by 1.50 cm tall. What is the volume of the box, taking significant figures into account?
______ cm3
39
The density of liquid Z is 0.9237 g/mL. A student masses a cup with a sample of liquid Z in it and finds the mass to be 50.7 g. The mass of the cup alone is 15.92 g. What is the volume of liquid Z in the cup? (Volume = mass ÷ density)
___ mL (Round your answer to 3 significant figures)
37.7
The dimensions of a water tank are 1.0 m wide by 3.25 m long by 1.50 m tall. What is the volume of the water tank, taking significant figures into account?
___ m3
4.9
The density of liquid A is 1.0240 g/mL. A cup with a sample of liquid A in it weighs to be 45.66 g. The mass of the cup alone is 12.32 g. What is the volume of liquid A in the cup? ___ mL
32.56
The dimensions of a cuboid shape cupboard are 1.31 m wide by 0.9 m long by 1.70 m tall. What is the volume of the cupboard, taking significant figures into account?
___ m3
2
Assume an object A with mass of 36.240 g and its density is 5.40 g/mL. What is its volume?
6.71
Perform the following calculation and give the answer with the correct number of significant figures: 10.888×44.
480
The product of 173.06×0.21 should be reported as _____ by using proper number of significant figures.
36
What is 4.07 cm×2.3 cm, rounded to the correct number of significant figures?
9.4cm2
What is 155.4 g/8.70 mL, rounded to the correct number of significant figures?
17.9g/mL
The mass of a solid substance is 21.1164 g. If the volume of the solid substance is 19.9 cm3, calculate the density of the substance with the correct number of significant digits.
1.06g/cm3
If we divide a number having 5 significant digits by another number having 3 significant digits, then the result will have 5 significant digits.
True or False?
False
The number of significant figures in the expression 46.00745.0 is two.
True or False?
False
After rounding off correctly, the product of 3.000 cm×30.0 cm is:
9.00x10^1cm2
The principle involved in working with ____
and _____
is that the answer should be rounded to the same number of significant figures as the measurement with the lowest number of significant figures.
Multiplication
Division
Calculate the number of significant figures up to which (28.2−21.2)(1.79×106)1.62 will be expressed.
2
Complete the sentence using the words units, values or quantities.
The ___
are multiplied together just as the numbers in multiplication and division problems.
units
The number of significant figures in the product of 4.0007×4.0 is 2.
True or False?
True
The answer for a multiplication or division operation must have the same number of significant figures as the factor with the least number of significant figures.
True or False?
True
In the following expression 0.012180x0236, the answer should be reported in three significant figures.
True
