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Density
Density is mass per unit of volume. Density also shows how tightly packed in molecules are in a material and also help determine buoyancy.
1,201 Questions
What is density and relative density?
Relative density, or specific gravity, is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. Specific gravity usually means relative density with respect to water. The term "relative density" is often preferred in modern scientific usage.
Density is mass per unit volume. To determine an object's density (absolute), simply divide its mass by its volume. For example, 1000 kilograms of water occupies one cubic meter. We can therefore say that water's density is 1000 kilograms per cubic meter (kg/m3), which equals one kilogram per liter (kg/L), which also equals one gram per milliliter (g/mL).
What method is used to find the density of an irregular shape object?
First 'weigh" the ojbect on a scale. this gives the mass.
2nd use the water displacement method to find the volume.
Then divide Density = mass / volume.
How do you find the density of a rock with the volume of 25cm3 and a mass of 100 grams?
density = mass divided by volume = 100/25 = 4 grammes per cubic centimetre.
What is the-formula for for density?
The formula for density is D=m/v (Density equals mass over volume)
This means that density is equal to the amount of matter "stuff" in an object in a certain amount of space, or volume. In SI units, density can be measured in kilograms per cubic meter , or grams per cubic centimeter.
Recall that we see density written like these examples:
13.534 grams per cubic centimeter (density of metallic liquid mercury)
1 pound per cubic foot (density of a "common" form of styrofoam)
Note that the volume measurements are in units, or in "just one" of the specified volume measures. We reduce the volume to get a "one" or to get that single unit. For instance, if we had styrofoam, and we measured 2 pounds of it and it had the volume of 2 cubic feet, we'd reduce that by dividing by 2 so we could get a single unit of the specified volume in our statement of density.
A last example might be that if we had 45 grams per 3 cubic centimeters, we'd have 15 grams per cubic centimeters after the division to get that single unit volume.
How do you find the density with only mass?
You can't.
There are two measurements needed: MASS and Volume
What is the density of water at 23.5 celsius?
The density of water at 23.5 degrees Celsius is approximately 0.997 g/cm3.
A density relay is a device used in electrical power systems to monitor the density of sulfur hexafluoride (SF6) gas within a high-voltage circuit breaker. The relay triggers an alarm or trip mechanism if the gas density falls below or exceeds pre-set levels, indicating a potential fault or leakage in the system. This helps to ensure the safe and efficient operation of the equipment.
What is the bulk density of perspex?
The bulk density of perspex (also known as acrylic) typically ranges from 1.17 to 1.20 grams per cubic centimeter.
How do you find the density of an object if you have the volume and mass?
Divide the mass by the volume. The quotient is the density.
Don't throw away the units ... they're part of the answer.
How do you find the density of a perfect cube with a balance and a ruler?
To find the density you need the mass and volume and then, density = mass/volume.
Given a ruler, you can easily measure an edge of the cube. If that is x units, then the volume is x3 cubic units.
However, it is not clear how you find a mass with just a balance. You need some standard weights, but these do not appear to be provided. You are stuck and cannot answer the question.
How do you find the density of a regular solid cube?
You measure its mass and volume and then density = mass/volume.
How does mass affect an object density?
Mass does affect an object's density. Density is calculated by dividing an object's mass by its volume. Therefore, if the mass of an object increases while its volume remains constant, its density will increase. Conversely, if the mass decreases while the volume stays the same, the density will decrease.
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How do you find the density of a rectangular prism if the mass is 100 grams?
It's the mass divided by its volume. The volume of a rectangular prism is length times width times height. So it would be 100 grams divided by the volume, and that volume = (L*W*H)
How do you find the density of chalk?
Density is measure as mass/volume. As with any matter, the density of chalk would require:
1. a measurement of its mass
2. a measurement for its volume.
Mass can be measures on a scale in kg. Chalk's shape also makes it calculable for volume (in metres). If it is cylindrical, measure the height and the radius, then solve for V = (pi)(r^2)h. Divide the mass by that volume and find its density in kg/m^3.
How do you use the displacement method to find the density of an irregular shape?
Determine the mass of the given body using a physical balance. Let it be 'M'.
Take some water in a measuring jar( water in the jar should be sufficient to immerse the solid). Note the initial level of water, let it be 'A'. Suspend the solid inside the jar using a thread so that the solid is fully immersed in the water, without touching the sides or bottom of the measuring jar. Note the water level. Let it be 'B'.
Then volume of the solid = A - B.
Then density of the solid = M/V.
