What are the three steps to calculating density?
Using a vernier caliper or ruler, measure the length, depth and width of the object in centimeters. Multiply these three measurements to find the volume in cubic centimeters. Divide the object’s mass by its volume to determine its density. Density is expressed in grams per cubic centimeter or grams per milliliter.
How do you determine the density of a substance or object?
Density is a measure of how compact the mass in a substance or object is. The density of an object or substance can be calculated from this equation: density in kilograms per meter cubed is equal to mass in kilograms, divided by volume in meters cubed (p = m / v).
What is the specific gravity of an object?
Specific gravity refers to the ratio of the density of an object and the reference material. Furthermore, the specific gravity can tell us if the object will sink or float in reference material. Besides, the reference material is water that always has a density of 1 gram per cubic centimeter or 1 gram per millimeter.
What are the three types of density?
Population density is often measured in three different ways. There is arithmetic density, physiological density, and agricultural density.
Which country has the lowest arithmetic density?
Mongolia
What are the density dependent factors?
Density-dependent factors include disease, competition, and predation. Density-dependant factors can have either a positive or a negative correlation to population size. With a positive relationship, these limiting factors increase with the size of the population and limit growth as population size increases.
What are 4 examples of density dependent limiting factors?
Some common examples of density-dependent limiting factors include:
- Competition within the population. When a population reaches a high density, there are more individuals trying to use the same quantity of resources.
- Predation.
- Disease and parasites.
- Waste accumulation.
What is the best example of a density dependent factor?
Density-dependent limiting factors tend to be biotic—having to do with living organisms. Competition and predation are two important examples of density-dependent factors. Mountain chickadees (Parus gambeli) compete for a special kind of nest site—tree holes.