How is the density of an object determined?(1 point)
Responses
by subtracting the mass of an object from its volume
by subtracting the mass of an object from its volume
by multiplying the volume of an object by its mass
by multiplying the volume of an object by its mass
by adding the volume of an object to its mass
by adding the volume of an object to its mass
by dividing the mass of an object by its volume
by dividing the mass of an object by its volume
The correct response is: by dividing the mass of an object by its volume.
What is the density of a cube with a side length of 2 meters and a mass of 40 kg?(1 point)
Responses
60 kgm
60 kgm
120 kg/m2120 kg/m2
5 kg/m35 kg/m3
32 kg/m
To find the density of the cube, we need to divide the mass (40 kg) by the volume. The volume of a cube can be calculated by cubing the length of one side. In this case, the side length is 2 m, so the volume is:
Volume = (2 m)^3 = 8 m^3
Now we can calculate the density:
Density = Mass / Volume = 40 kg / 8 m^3 = 5 kg/m^3
Therefore, the correct response is: 5 kg/m^3
What is the volume of a cube with a side length of 3 centimeters?(1 point)
Responses
9 square centimeters
9 square centimeters
6 square centimeters
6 square centimeters
27 cubic centimeters
27 cubic centimeters
3 cubic centimeters
3 cubic centimeters
To find the volume of a cube with a side length of 3 centimeters, we need to cube the length of one side. In this case, the side length is 3 cm, so the volume is:
Volume = (3 cm)^3 = 27 cm^3
Therefore, the correct response is: 27 cubic centimeters.
What does the density of an object tell you about the object?(1 point)
Responses
how compact the object is
how compact the object is
what amount of space the object takes up
what amount of space the object takes up
how much matter the object has
how much matter the object has
what the weight of the object is
The correct response is: how much matter the object has.
Which term describes the amount of matter in a tree?(1 point)
Responses
the mass of the tree
the mass of the tree
the volume of the tree
the volume of the tree
the height of the tree
the height of the tree
the density of the tree
The correct response is: the mass of the tree.
The density of an object is determined by dividing the mass of the object by its volume. So, the correct answer is: "by dividing the mass of an object by its volume."
To calculate the density of an object, you need to know its mass and volume. The mass can be obtained by measuring the object on a balance or scale. The volume can be determined by measuring the dimensions of the object or by displacing a known amount of fluid when the object is submerged. Once you have the mass and volume, you can divide the mass by the volume to find the density.