Relative Density

Front

What is relative density?

Back

Relative density is a measure of the density of an object compared to the density of a reference substance, typically water.

Front

What determines whether an object will float or sink in water?

Back

An object will float if its relative density is less than that of water, and it will sink if its relative density is greater than that of water.

Front

If an object has a density greater than water, what will happen to it when placed in water?

Back

It will sink.

Front

If an object has a density less than water, what will happen to it when placed in water?

Back

It will float.

Front

What is the relationship between the density of a boat and the density of water for it to float?

Back

The density of the boat must be less than the density of water.

Front

What happens to an egg in water if it has the same density as the water?

Back

It will neither sink nor float; it will remain suspended in the water.

Front

What is the term for the density of an object compared to the density of water?

Back

Relative density.

Front

How does the density of rocks compare to water, and what is the consequence?

Back

Rocks are more dense than water, which causes them to sink.

Front

What is the effect of adding salt to water on the density of the water?

Back

Adding salt increases the density of the water.

Front

What is buoyancy?

Back

Buoyancy is the upward force exerted by a fluid that opposes the weight of an object immersed in it.