Density Review

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³).

Front

How does density affect whether an object sinks or floats?

Back

An object will float if its density is less than the density of the fluid it is in. It will sink if its density is greater.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

If two objects have the same volume but different masses, how do their densities compare?

Back

The object with the greater mass will have a higher density.

Front

What happens to the density of a substance when it is heated?

Back

Generally, the density decreases as the temperature increases because the substance expands.

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³ at 4°C.

Front

What is buoyancy?

Back

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

Front

What is the relationship between buoyancy and density?

Back

An object will experience a buoyant force equal to the weight of the fluid it displaces, which is influenced by the object's density.

Front

What is the principle of flotation?

Back

The principle of flotation states that an object will float if it displaces a volume of fluid equal to its weight.

Front

How does cutting a floating object in half affect its buoyancy?

Back

Cutting a floating object in half does not change its overall density; it will still float at the same level.