Which statement is true about the elements in the periodic table?
2 answers:
You might be interested in
1) Area of one side of each cube
The area of one side of each cube can be calculated by multiplying the length times the width:
where
L = length
W = width
For cube A:
So the area is:
For cube B:
So the area is:
For cube C:
So the area is:
2) Surface area of each cube
The surface area of a cube is given by the sum of the areas of all its faces. Since a cube has 6 identical faces, this means that the total surface area is equal to 6 times the area of one face:
where
is the area of one face of the cube
For cube A, the area of one face is
So the surface area of cube A is
For cube B, the area of one face is
So the surface area of cube B is
For cube C, the area of one face is
So the surface area of cube C is
3) Volume of each cube
The volume of a cube is obtained by multiplying its length, its width and its height:
Where:
L = length
W = width
H = height
Moreover for a cube, all the sides have equal length, so
So the volume can be rewritten as
For cube A: L = 1 cm
So the volume is
For cube B: L = 2 cm
So the volume is
For cube C: L = 3 cm
So the volume is
4) Ratio surface area/volume for each cube
In this part, we have to calculate the ratio between surface area and volume of each cube:
where
A is the surface area
V is the volume
For cube A, we have:
(surface area)
(volume)
So the ratio for cube A is:
For cube B, we have:
(surface area)
(volume)
So the ratio for cube B is:
For cube C, we have:
(surface area)
(volume)
So the ratio for cube C is: