D. Answer the following questions.
1. What do you mean by density? How is knowledge of density useful in finding out if a
substance will float or sink in water?
Answers
Answer:
Density is a measure of how compact the mass in a substance or object is. Heavy, small objects are super dense. And large, light objects are not very dense at all. It turns out that density is really useful for figuring out if an object will sink or float. An object that is more dense than water will sink.
Density is what really determines whether something will sink or float. Therefore, we say that if something's density is lesser than the water's density, then it will float on water's surface, otherwise it will sink. The density of a material is its mass per unit volume. The symbol most often used for density is ρ.
Answer:
Explanation:DENSITY -it is the ratio of mass per volume !!
density is useful in finding out whetherthe substance will float or sink as when a substance have higher density then the fluid ot sinks and when it has lower density then the fluid it floats !!!